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Finding the Fourth Proportional to 124,990.84, 172,466.82 and 71,276.92

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Solution

The fourth proportional to 124,990.84, 172,466.82 and 71,276.92 is: 98,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,990.84 : 172,466.82 = 71,276.92 : x
  2. Step 2: Convert to fraction form
    124,990.84/172,466.82 = 71,276.92/x
  3. Step 3: Cross multiply
    124,990.84x = 172,466.82 × 71,276.92
  4. Step 4: Simplify right side
    124,990.84x = 12,292,903,731.79
  5. Step 5: Solve for x
    x = 12,292,903,731.79/124,990.84
  6. Step 6: Final answer
    x = 98,350.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.