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Finding the Fourth Proportional to 70,201.80, 105,302.70 and 62,166.60

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Solution

The fourth proportional to 70,201.80, 105,302.70 and 62,166.60 is: 93,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,201.80 : 105,302.70 = 62,166.60 : x
  2. Step 2: Convert to fraction form
    70,201.80/105,302.70 = 62,166.60/x
  3. Step 3: Cross multiply
    70,201.80x = 105,302.70 × 62,166.60
  4. Step 4: Simplify right side
    70,201.80x = 6,546,310,829.82
  5. Step 5: Solve for x
    x = 6,546,310,829.82/70,201.80
  6. Step 6: Final answer
    x = 93,249.90

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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.