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Finding the Fourth Proportional to 186,042, 279,061.97 and 67,713.35

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Solution

The fourth proportional to 186,042, 279,061.97 and 67,713.35 is: 101,569.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,042 : 279,061.97 = 67,713.35 : x
  2. Step 2: Convert to fraction form
    186,042/279,061.97 = 67,713.35/x
  3. Step 3: Cross multiply
    186,042x = 279,061.97 × 67,713.35
  4. Step 4: Simplify right side
    186,042x = 18,896,219,112.42
  5. Step 5: Solve for x
    x = 18,896,219,112.42/186,042
  6. Step 6: Final answer
    x = 101,569.64

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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.