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Finding the Fourth Proportional to 130,001.92, 194,823.68 and 74,480.64

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Solution

The fourth proportional to 130,001.92, 194,823.68 and 74,480.64 is: 111,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,001.92 : 194,823.68 = 74,480.64 : x
  2. Step 2: Convert to fraction form
    130,001.92/194,823.68 = 74,480.64/x
  3. Step 3: Cross multiply
    130,001.92x = 194,823.68 × 74,480.64
  4. Step 4: Simplify right side
    130,001.92x = 14,510,592,373.56
  5. Step 5: Solve for x
    x = 14,510,592,373.56/130,001.92
  6. Step 6: Final answer
    x = 111,618.29

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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.