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Finding the Fourth Proportional to 88,779.60, 133,169.40 and 59,101.20

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Solution

The fourth proportional to 88,779.60, 133,169.40 and 59,101.20 is: 88,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,779.60 : 133,169.40 = 59,101.20 : x
  2. Step 2: Convert to fraction form
    88,779.60/133,169.40 = 59,101.20/x
  3. Step 3: Cross multiply
    88,779.60x = 133,169.40 × 59,101.20
  4. Step 4: Simplify right side
    88,779.60x = 7,870,471,343.28
  5. Step 5: Solve for x
    x = 7,870,471,343.28/88,779.60
  6. Step 6: Final answer
    x = 88,651.80

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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.