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Finding the Fourth Proportional to 186,041.63, 279,061.40 and 67,712.97

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Solution

The fourth proportional to 186,041.63, 279,061.40 and 67,712.97 is: 101,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,041.63 : 279,061.40 = 67,712.97 : x
  2. Step 2: Convert to fraction form
    186,041.63/279,061.40 = 67,712.97/x
  3. Step 3: Cross multiply
    186,041.63x = 279,061.40 × 67,712.97
  4. Step 4: Simplify right side
    186,041.63x = 18,896,077,422.12
  5. Step 5: Solve for x
    x = 18,896,077,422.12/186,041.63
  6. Step 6: Final answer
    x = 101,569.08

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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.