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Finding the Fourth Proportional to 59,726.40, 89,618.40 and 42,158.40

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Solution

The fourth proportional to 59,726.40, 89,618.40 and 42,158.40 is: 63,257.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,726.40 : 89,618.40 = 42,158.40 : x
  2. Step 2: Convert to fraction form
    59,726.40/89,618.40 = 42,158.40/x
  3. Step 3: Cross multiply
    59,726.40x = 89,618.40 × 42,158.40
  4. Step 4: Simplify right side
    59,726.40x = 3,778,168,354.56
  5. Step 5: Solve for x
    x = 3,778,168,354.56/59,726.40
  6. Step 6: Final answer
    x = 63,257.93

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.