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Finding the Fourth Proportional to 125,124.16, 187,694.88 and 36,378.40

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Solution

The fourth proportional to 125,124.16, 187,694.88 and 36,378.40 is: 54,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,124.16 : 187,694.88 = 36,378.40 : x
  2. Step 2: Convert to fraction form
    125,124.16/187,694.88 = 36,378.40/x
  3. Step 3: Cross multiply
    125,124.16x = 187,694.88 × 36,378.40
  4. Step 4: Simplify right side
    125,124.16x = 6,828,039,422.59
  5. Step 5: Solve for x
    x = 6,828,039,422.59/125,124.16
  6. Step 6: Final answer
    x = 54,570.11

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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.