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Finding the Fourth Proportional to 84,672, 127,036.44 and 59,397.84

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Solution

The fourth proportional to 84,672, 127,036.44 and 59,397.84 is: 89,116.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,672 : 127,036.44 = 59,397.84 : x
  2. Step 2: Convert to fraction form
    84,672/127,036.44 = 59,397.84/x
  3. Step 3: Cross multiply
    84,672x = 127,036.44 × 59,397.84
  4. Step 4: Simplify right side
    84,672x = 7,545,690,137.29
  5. Step 5: Solve for x
    x = 7,545,690,137.29/84,672
  6. Step 6: Final answer
    x = 89,116.71

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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.