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Finding the Fourth Proportional to 155,908.70, 233,931.90 and 75,902.30

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Solution

The fourth proportional to 155,908.70, 233,931.90 and 75,902.30 is: 113,886.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,908.70 : 233,931.90 = 75,902.30 : x
  2. Step 2: Convert to fraction form
    155,908.70/233,931.90 = 75,902.30/x
  3. Step 3: Cross multiply
    155,908.70x = 233,931.90 × 75,902.30
  4. Step 4: Simplify right side
    155,908.70x = 17,755,969,253.37
  5. Step 5: Solve for x
    x = 17,755,969,253.37/155,908.70
  6. Step 6: Final answer
    x = 113,886.97

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1.5x scale

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.