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Finding the Fourth Proportional to 242,672.80, 363,863.40 and 124,574.80

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Solution

The fourth proportional to 242,672.80, 363,863.40 and 124,574.80 is: 186,787.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,672.80 : 363,863.40 = 124,574.80 : x
  2. Step 2: Convert to fraction form
    242,672.80/363,863.40 = 124,574.80/x
  3. Step 3: Cross multiply
    242,672.80x = 363,863.40 × 124,574.80
  4. Step 4: Simplify right side
    242,672.80x = 45,328,210,282.32
  5. Step 5: Solve for x
    x = 45,328,210,282.32/242,672.80
  6. Step 6: Final answer
    x = 186,787.35

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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.