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Finding the Fourth Proportional to 110,362.47, 152,298.79 and 65,042.38

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Solution

The fourth proportional to 110,362.47, 152,298.79 and 65,042.38 is: 89,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,362.47 : 152,298.79 = 65,042.38 : x
  2. Step 2: Convert to fraction form
    110,362.47/152,298.79 = 65,042.38/x
  3. Step 3: Cross multiply
    110,362.47x = 152,298.79 × 65,042.38
  4. Step 4: Simplify right side
    110,362.47x = 9,905,875,772.72
  5. Step 5: Solve for x
    x = 9,905,875,772.72/110,362.47
  6. Step 6: Final answer
    x = 89,757.65

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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.