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Finding the Fourth Proportional to 147,097.20, 220,703.40 and 53,612.40

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Solution

The fourth proportional to 147,097.20, 220,703.40 and 53,612.40 is: 80,439.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,097.20 : 220,703.40 = 53,612.40 : x
  2. Step 2: Convert to fraction form
    147,097.20/220,703.40 = 53,612.40/x
  3. Step 3: Cross multiply
    147,097.20x = 220,703.40 × 53,612.40
  4. Step 4: Simplify right side
    147,097.20x = 11,832,438,962.16
  5. Step 5: Solve for x
    x = 11,832,438,962.16/147,097.20
  6. Step 6: Final answer
    x = 80,439.59

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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.