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Finding the Fourth Proportional to 64,202.20, 96,351.90 and 42,008.20

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Solution

The fourth proportional to 64,202.20, 96,351.90 and 42,008.20 is: 63,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,202.20 : 96,351.90 = 42,008.20 : x
  2. Step 2: Convert to fraction form
    64,202.20/96,351.90 = 42,008.20/x
  3. Step 3: Cross multiply
    64,202.20x = 96,351.90 × 42,008.20
  4. Step 4: Simplify right side
    64,202.20x = 4,047,569,885.58
  5. Step 5: Solve for x
    x = 4,047,569,885.58/64,202.20
  6. Step 6: Final answer
    x = 63,044.10

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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.