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Finding the Fourth Proportional to 94,141, 129,926.10 and 54,397

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Solution

The fourth proportional to 94,141, 129,926.10 and 54,397 is: 75,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,141 : 129,926.10 = 54,397 : x
  2. Step 2: Convert to fraction form
    94,141/129,926.10 = 54,397/x
  3. Step 3: Cross multiply
    94,141x = 129,926.10 × 54,397
  4. Step 4: Simplify right side
    94,141x = 7,067,590,061.70
  5. Step 5: Solve for x
    x = 7,067,590,061.70/94,141
  6. Step 6: Final answer
    x = 75,074.52

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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.