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Finding the Fourth Proportional to 124,635.61, 186,935.04 and 40,403.10

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Solution

The fourth proportional to 124,635.61, 186,935.04 and 40,403.10 is: 60,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,635.61 : 186,935.04 = 40,403.10 : x
  2. Step 2: Convert to fraction form
    124,635.61/186,935.04 = 40,403.10/x
  3. Step 3: Cross multiply
    124,635.61x = 186,935.04 × 40,403.10
  4. Step 4: Simplify right side
    124,635.61x = 7,552,755,815.63
  5. Step 5: Solve for x
    x = 7,552,755,815.63/124,635.61
  6. Step 6: Final answer
    x = 60,598.70

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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.