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Finding the Fourth Proportional to 186,158.32, 279,071.36 and 67,746.88

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Solution

The fourth proportional to 186,158.32, 279,071.36 and 67,746.88 is: 101,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,158.32 : 279,071.36 = 67,746.88 : x
  2. Step 2: Convert to fraction form
    186,158.32/279,071.36 = 67,746.88/x
  3. Step 3: Cross multiply
    186,158.32x = 279,071.36 × 67,746.88
  4. Step 4: Simplify right side
    186,158.32x = 18,906,213,937.36
  5. Step 5: Solve for x
    x = 18,906,213,937.36/186,158.32
  6. Step 6: Final answer
    x = 101,559.87

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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.