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Finding the Fourth Proportional to 155,564.70, 232,763.85 and 141,567.90

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Solution

The fourth proportional to 155,564.70, 232,763.85 and 141,567.90 is: 211,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,564.70 : 232,763.85 = 141,567.90 : x
  2. Step 2: Convert to fraction form
    155,564.70/232,763.85 = 141,567.90/x
  3. Step 3: Cross multiply
    155,564.70x = 232,763.85 × 141,567.90
  4. Step 4: Simplify right side
    155,564.70x = 32,951,889,440.42
  5. Step 5: Solve for x
    x = 32,951,889,440.42/155,564.70
  6. Step 6: Final answer
    x = 211,821.12

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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.