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Finding the Fourth Proportional to 130,439.52, 195,542.64 and 63,838.08

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Solution

The fourth proportional to 130,439.52, 195,542.64 and 63,838.08 is: 95,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,439.52 : 195,542.64 = 63,838.08 : x
  2. Step 2: Convert to fraction form
    130,439.52/195,542.64 = 63,838.08/x
  3. Step 3: Cross multiply
    130,439.52x = 195,542.64 × 63,838.08
  4. Step 4: Simplify right side
    130,439.52x = 12,483,066,695.73
  5. Step 5: Solve for x
    x = 12,483,066,695.73/130,439.52
  6. Step 6: Final answer
    x = 95,700.04

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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.