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Finding the Fourth Proportional to 70,962.80, 106,298.40 and 48,801.20

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Solution

The fourth proportional to 70,962.80, 106,298.40 and 48,801.20 is: 73,101.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,962.80 : 106,298.40 = 48,801.20 : x
  2. Step 2: Convert to fraction form
    70,962.80/106,298.40 = 48,801.20/x
  3. Step 3: Cross multiply
    70,962.80x = 106,298.40 × 48,801.20
  4. Step 4: Simplify right side
    70,962.80x = 5,187,489,478.08
  5. Step 5: Solve for x
    x = 5,187,489,478.08/70,962.80
  6. Step 6: Final answer
    x = 73,101.53

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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.