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Finding the Fourth Proportional to 331,565.70, 497,397.93 and 118,317

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Solution

The fourth proportional to 331,565.70, 497,397.93 and 118,317 is: 177,493.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,565.70 : 497,397.93 = 118,317 : x
  2. Step 2: Convert to fraction form
    331,565.70/497,397.93 = 118,317/x
  3. Step 3: Cross multiply
    331,565.70x = 497,397.93 × 118,317
  4. Step 4: Simplify right side
    331,565.70x = 58,850,630,883.81
  5. Step 5: Solve for x
    x = 58,850,630,883.81/331,565.70
  6. Step 6: Final answer
    x = 177,493.12

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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.