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Finding the Fourth Proportional to 48,316.40, 72,620.40 and 41,901.20

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Solution

The fourth proportional to 48,316.40, 72,620.40 and 41,901.20 is: 62,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,316.40 : 72,620.40 = 41,901.20 : x
  2. Step 2: Convert to fraction form
    48,316.40/72,620.40 = 41,901.20/x
  3. Step 3: Cross multiply
    48,316.40x = 72,620.40 × 41,901.20
  4. Step 4: Simplify right side
    48,316.40x = 3,042,881,904.48
  5. Step 5: Solve for x
    x = 3,042,881,904.48/48,316.40
  6. Step 6: Final answer
    x = 62,978.24

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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.