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Finding the Fourth Proportional to 162,642.72, 243,823.68 and 62,872.80

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Solution

The fourth proportional to 162,642.72, 243,823.68 and 62,872.80 is: 94,254.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,642.72 : 243,823.68 = 62,872.80 : x
  2. Step 2: Convert to fraction form
    162,642.72/243,823.68 = 62,872.80/x
  3. Step 3: Cross multiply
    162,642.72x = 243,823.68 × 62,872.80
  4. Step 4: Simplify right side
    162,642.72x = 15,329,877,467.90
  5. Step 5: Solve for x
    x = 15,329,877,467.90/162,642.72
  6. Step 6: Final answer
    x = 94,254.93

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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.