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Finding the Fourth Proportional to 94,717.60, 130,699.22 and 56,479.28

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Solution

The fourth proportional to 94,717.60, 130,699.22 and 56,479.28 is: 77,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,717.60 : 130,699.22 = 56,479.28 : x
  2. Step 2: Convert to fraction form
    94,717.60/130,699.22 = 56,479.28/x
  3. Step 3: Cross multiply
    94,717.60x = 130,699.22 × 56,479.28
  4. Step 4: Simplify right side
    94,717.60x = 7,381,797,223.97
  5. Step 5: Solve for x
    x = 7,381,797,223.97/94,717.60
  6. Step 6: Final answer
    x = 77,934.80

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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.