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Finding the Fourth Proportional to 178,987.80, 268,463.22 and 60,656.08

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Solution

The fourth proportional to 178,987.80, 268,463.22 and 60,656.08 is: 90,977.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,987.80 : 268,463.22 = 60,656.08 : x
  2. Step 2: Convert to fraction form
    178,987.80/268,463.22 = 60,656.08/x
  3. Step 3: Cross multiply
    178,987.80x = 268,463.22 × 60,656.08
  4. Step 4: Simplify right side
    178,987.80x = 16,283,926,549.38
  5. Step 5: Solve for x
    x = 16,283,926,549.38/178,987.80
  6. Step 6: Final answer
    x = 90,977.86

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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.