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Finding the Fourth Proportional to 59,120.40, 88,681.40 and 19,677.52

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Solution

The fourth proportional to 59,120.40, 88,681.40 and 19,677.52 is: 29,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,120.40 : 88,681.40 = 19,677.52 : x
  2. Step 2: Convert to fraction form
    59,120.40/88,681.40 = 19,677.52/x
  3. Step 3: Cross multiply
    59,120.40x = 88,681.40 × 19,677.52
  4. Step 4: Simplify right side
    59,120.40x = 1,745,030,022.13
  5. Step 5: Solve for x
    x = 1,745,030,022.13/59,120.40
  6. Step 6: Final answer
    x = 29,516.55

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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.