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Finding the Fourth Proportional to 125,925.71, 173,724.45 and 83,410.43

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Solution

The fourth proportional to 125,925.71, 173,724.45 and 83,410.43 is: 115,071.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,925.71 : 173,724.45 = 83,410.43 : x
  2. Step 2: Convert to fraction form
    125,925.71/173,724.45 = 83,410.43/x
  3. Step 3: Cross multiply
    125,925.71x = 173,724.45 × 83,410.43
  4. Step 4: Simplify right side
    125,925.71x = 14,490,431,076.01
  5. Step 5: Solve for x
    x = 14,490,431,076.01/125,925.71
  6. Step 6: Final answer
    x = 115,071.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.