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Finding the Fourth Proportional to 178,167.52, 245,802.74 and 101,690.86

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Solution

The fourth proportional to 178,167.52, 245,802.74 and 101,690.86 is: 140,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,167.52 : 245,802.74 = 101,690.86 : x
  2. Step 2: Convert to fraction form
    178,167.52/245,802.74 = 101,690.86/x
  3. Step 3: Cross multiply
    178,167.52x = 245,802.74 × 101,690.86
  4. Step 4: Simplify right side
    178,167.52x = 24,995,892,020.96
  5. Step 5: Solve for x
    x = 24,995,892,020.96/178,167.52
  6. Step 6: Final answer
    x = 140,294.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.