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Finding the Fourth Proportional to 64,149.80, 96,030.30 and 48,468.20

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Solution

The fourth proportional to 64,149.80, 96,030.30 and 48,468.20 is: 72,555.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,149.80 : 96,030.30 = 48,468.20 : x
  2. Step 2: Convert to fraction form
    64,149.80/96,030.30 = 48,468.20/x
  3. Step 3: Cross multiply
    64,149.80x = 96,030.30 × 48,468.20
  4. Step 4: Simplify right side
    64,149.80x = 4,654,415,786.46
  5. Step 5: Solve for x
    x = 4,654,415,786.46/64,149.80
  6. Step 6: Final answer
    x = 72,555.42

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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.