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Finding the Fourth Proportional to 82,989.80, 124,484.59 and 33,104.93

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Solution

The fourth proportional to 82,989.80, 124,484.59 and 33,104.93 is: 49,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,989.80 : 124,484.59 = 33,104.93 : x
  2. Step 2: Convert to fraction form
    82,989.80/124,484.59 = 33,104.93/x
  3. Step 3: Cross multiply
    82,989.80x = 124,484.59 × 33,104.93
  4. Step 4: Simplify right side
    82,989.80x = 4,121,053,638.03
  5. Step 5: Solve for x
    x = 4,121,053,638.03/82,989.80
  6. Step 6: Final answer
    x = 49,657.35

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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.