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Finding the Fourth Proportional to 92,068.74, 127,064.61 and 56,279.70

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Solution

The fourth proportional to 92,068.74, 127,064.61 and 56,279.70 is: 77,671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,068.74 : 127,064.61 = 56,279.70 : x
  2. Step 2: Convert to fraction form
    92,068.74/127,064.61 = 56,279.70/x
  3. Step 3: Cross multiply
    92,068.74x = 127,064.61 × 56,279.70
  4. Step 4: Simplify right side
    92,068.74x = 7,151,158,131.42
  5. Step 5: Solve for x
    x = 7,151,158,131.42/92,068.74
  6. Step 6: Final answer
    x = 77,671.95

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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.