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Finding the Fourth Proportional to 48,200.90, 72,301.35 and 42,368.90

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Solution

The fourth proportional to 48,200.90, 72,301.35 and 42,368.90 is: 63,553.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,200.90 : 72,301.35 = 42,368.90 : x
  2. Step 2: Convert to fraction form
    48,200.90/72,301.35 = 42,368.90/x
  3. Step 3: Cross multiply
    48,200.90x = 72,301.35 × 42,368.90
  4. Step 4: Simplify right side
    48,200.90x = 3,063,328,668.02
  5. Step 5: Solve for x
    x = 3,063,328,668.02/48,200.90
  6. Step 6: Final answer
    x = 63,553.35

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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.