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Finding the Fourth Proportional to 125,068.95, 187,437.56 and 65,946.47

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Solution

The fourth proportional to 125,068.95, 187,437.56 and 65,946.47 is: 98,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,068.95 : 187,437.56 = 65,946.47 : x
  2. Step 2: Convert to fraction form
    125,068.95/187,437.56 = 65,946.47/x
  3. Step 3: Cross multiply
    125,068.95x = 187,437.56 × 65,946.47
  4. Step 4: Simplify right side
    125,068.95x = 12,360,844,160.49
  5. Step 5: Solve for x
    x = 12,360,844,160.49/125,068.95
  6. Step 6: Final answer
    x = 98,832.24

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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.