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Finding the Fourth Proportional to 155,425.80, 233,138.70 and 146,677.80

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Solution

The fourth proportional to 155,425.80, 233,138.70 and 146,677.80 is: 220,016.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,425.80 : 233,138.70 = 146,677.80 : x
  2. Step 2: Convert to fraction form
    155,425.80/233,138.70 = 146,677.80/x
  3. Step 3: Cross multiply
    155,425.80x = 233,138.70 × 146,677.80
  4. Step 4: Simplify right side
    155,425.80x = 34,196,271,610.86
  5. Step 5: Solve for x
    x = 34,196,271,610.86/155,425.80
  6. Step 6: Final answer
    x = 220,016.70

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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.