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Finding the Fourth Proportional to 80,655.92, 111,319.80 and 46,660.40

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Solution

The fourth proportional to 80,655.92, 111,319.80 and 46,660.40 is: 64,399.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,655.92 : 111,319.80 = 46,660.40 : x
  2. Step 2: Convert to fraction form
    80,655.92/111,319.80 = 46,660.40/x
  3. Step 3: Cross multiply
    80,655.92x = 111,319.80 × 46,660.40
  4. Step 4: Simplify right side
    80,655.92x = 5,194,226,395.92
  5. Step 5: Solve for x
    x = 5,194,226,395.92/80,655.92
  6. Step 6: Final answer
    x = 64,399.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.