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Finding the Fourth Proportional to 159,385.86, 219,810.31 and 113,355.18

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Solution

The fourth proportional to 159,385.86, 219,810.31 and 113,355.18 is: 156,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,385.86 : 219,810.31 = 113,355.18 : x
  2. Step 2: Convert to fraction form
    159,385.86/219,810.31 = 113,355.18/x
  3. Step 3: Cross multiply
    159,385.86x = 219,810.31 × 113,355.18
  4. Step 4: Simplify right side
    159,385.86x = 24,916,636,972.52
  5. Step 5: Solve for x
    x = 24,916,636,972.52/159,385.86
  6. Step 6: Final answer
    x = 156,329.03

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1.5x scale

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.