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Finding the Fourth Proportional to 48,373.30, 72,372.20 and 42,405.30

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Solution

The fourth proportional to 48,373.30, 72,372.20 and 42,405.30 is: 63,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,373.30 : 72,372.20 = 42,405.30 : x
  2. Step 2: Convert to fraction form
    48,373.30/72,372.20 = 42,405.30/x
  3. Step 3: Cross multiply
    48,373.30x = 72,372.20 × 42,405.30
  4. Step 4: Simplify right side
    48,373.30x = 3,068,964,852.66
  5. Step 5: Solve for x
    x = 3,068,964,852.66/48,373.30
  6. Step 6: Final answer
    x = 63,443.36

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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.