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Finding the Fourth Proportional to 103,655.52, 155,638.80 and 59,332.32

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Solution

The fourth proportional to 103,655.52, 155,638.80 and 59,332.32 is: 89,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,655.52 : 155,638.80 = 59,332.32 : x
  2. Step 2: Convert to fraction form
    103,655.52/155,638.80 = 59,332.32/x
  3. Step 3: Cross multiply
    103,655.52x = 155,638.80 × 59,332.32
  4. Step 4: Simplify right side
    103,655.52x = 9,234,411,086.02
  5. Step 5: Solve for x
    x = 9,234,411,086.02/103,655.52
  6. Step 6: Final answer
    x = 89,087.50

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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.