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Finding the Fourth Proportional to 201,010,501.20, 301,515,751.80 and 180,603,166.80

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Solution

The fourth proportional to 201,010,501.20, 301,515,751.80 and 180,603,166.80 is: 270,904,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,010,501.20 : 301,515,751.80 = 180,603,166.80 : x
  2. Step 2: Convert to fraction form
    201,010,501.20/301,515,751.80 = 180,603,166.80/x
  3. Step 3: Cross multiply
    201,010,501.20x = 301,515,751.80 × 180,603,166.80
  4. Step 4: Simplify right side
    201,010,501.20x = 54,454,699,615,162,808
  5. Step 5: Solve for x
    x = 54,454,699,615,162,808/201,010,501.20
  6. Step 6: Final answer
    x = 270,904,750.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.