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Finding the Fourth Proportional to 243,046.80, 364,570.20 and 124,730.10

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Solution

The fourth proportional to 243,046.80, 364,570.20 and 124,730.10 is: 187,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,046.80 : 364,570.20 = 124,730.10 : x
  2. Step 2: Convert to fraction form
    243,046.80/364,570.20 = 124,730.10/x
  3. Step 3: Cross multiply
    243,046.80x = 364,570.20 × 124,730.10
  4. Step 4: Simplify right side
    243,046.80x = 45,472,877,503.02
  5. Step 5: Solve for x
    x = 45,472,877,503.02/243,046.80
  6. Step 6: Final answer
    x = 187,095.15

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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.