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Finding the Fourth Proportional to 178,885.80, 268,337.88 and 45,767.21

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Solution

The fourth proportional to 178,885.80, 268,337.88 and 45,767.21 is: 68,653.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,885.80 : 268,337.88 = 45,767.21 : x
  2. Step 2: Convert to fraction form
    178,885.80/268,337.88 = 45,767.21/x
  3. Step 3: Cross multiply
    178,885.80x = 268,337.88 × 45,767.21
  4. Step 4: Simplify right side
    178,885.80x = 12,281,074,763.23
  5. Step 5: Solve for x
    x = 12,281,074,763.23/178,885.80
  6. Step 6: Final answer
    x = 68,653.16

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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.