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Finding the Fourth Proportional to 84,483.67, 126,746.70 and 25,319.20

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Solution

The fourth proportional to 84,483.67, 126,746.70 and 25,319.20 is: 37,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,483.67 : 126,746.70 = 25,319.20 : x
  2. Step 2: Convert to fraction form
    84,483.67/126,746.70 = 25,319.20/x
  3. Step 3: Cross multiply
    84,483.67x = 126,746.70 × 25,319.20
  4. Step 4: Simplify right side
    84,483.67x = 3,209,125,046.64
  5. Step 5: Solve for x
    x = 3,209,125,046.64/84,483.67
  6. Step 6: Final answer
    x = 37,985.15

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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.