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Finding the Fourth Proportional to 178,707.88, 268,063.90 and 45,587.88

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Solution

The fourth proportional to 178,707.88, 268,063.90 and 45,587.88 is: 68,382.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,707.88 : 268,063.90 = 45,587.88 : x
  2. Step 2: Convert to fraction form
    178,707.88/268,063.90 = 45,587.88/x
  3. Step 3: Cross multiply
    178,707.88x = 268,063.90 × 45,587.88
  4. Step 4: Simplify right side
    178,707.88x = 12,220,464,905.53
  5. Step 5: Solve for x
    x = 12,220,464,905.53/178,707.88
  6. Step 6: Final answer
    x = 68,382.35

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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.