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Finding the Fourth Proportional to 82,734.40, 124,130.40 and 36,001.60

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Solution

The fourth proportional to 82,734.40, 124,130.40 and 36,001.60 is: 54,014.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,734.40 : 124,130.40 = 36,001.60 : x
  2. Step 2: Convert to fraction form
    82,734.40/124,130.40 = 36,001.60/x
  3. Step 3: Cross multiply
    82,734.40x = 124,130.40 × 36,001.60
  4. Step 4: Simplify right side
    82,734.40x = 4,468,893,008.64
  5. Step 5: Solve for x
    x = 4,468,893,008.64/82,734.40
  6. Step 6: Final answer
    x = 54,014.93

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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.