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Finding the Fourth Proportional to 125,448.55, 188,158.75 and 36,702.72

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Solution

The fourth proportional to 125,448.55, 188,158.75 and 36,702.72 is: 55,049.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,448.55 : 188,158.75 = 36,702.72 : x
  2. Step 2: Convert to fraction form
    125,448.55/188,158.75 = 36,702.72/x
  3. Step 3: Cross multiply
    125,448.55x = 188,158.75 × 36,702.72
  4. Step 4: Simplify right side
    125,448.55x = 6,905,937,825.04
  5. Step 5: Solve for x
    x = 6,905,937,825.04/125,448.55
  6. Step 6: Final answer
    x = 55,049.96

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1.5x scale

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.