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Finding the Fourth Proportional to 59,186.40, 88,779.60 and 39,400.80

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Solution

The fourth proportional to 59,186.40, 88,779.60 and 39,400.80 is: 59,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,186.40 : 88,779.60 = 39,400.80 : x
  2. Step 2: Convert to fraction form
    59,186.40/88,779.60 = 39,400.80/x
  3. Step 3: Cross multiply
    59,186.40x = 88,779.60 × 39,400.80
  4. Step 4: Simplify right side
    59,186.40x = 3,497,987,263.68
  5. Step 5: Solve for x
    x = 3,497,987,263.68/59,186.40
  6. Step 6: Final answer
    x = 59,101.20

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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.