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Finding the Fourth Proportional to 92,714.70, 129,931.80 and 92,714.70

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Solution

The fourth proportional to 92,714.70, 129,931.80 and 92,714.70 is: 129,931.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,714.70 : 129,931.80 = 92,714.70 : x
  2. Step 2: Convert to fraction form
    92,714.70/129,931.80 = 92,714.70/x
  3. Step 3: Cross multiply
    92,714.70x = 129,931.80 × 92,714.70
  4. Step 4: Simplify right side
    92,714.70x = 12,046,587,857.46
  5. Step 5: Solve for x
    x = 12,046,587,857.46/92,714.70
  6. Step 6: Final answer
    x = 129,931.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.