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Finding the Fourth Proportional to 125,114.40, 187,683.96 and 36,368.64

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Solution

The fourth proportional to 125,114.40, 187,683.96 and 36,368.64 is: 54,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,114.40 : 187,683.96 = 36,368.64 : x
  2. Step 2: Convert to fraction form
    125,114.40/187,683.96 = 36,368.64/x
  3. Step 3: Cross multiply
    125,114.40x = 187,683.96 × 36,368.64
  4. Step 4: Simplify right side
    125,114.40x = 6,825,810,375.01
  5. Step 5: Solve for x
    x = 6,825,810,375.01/125,114.40
  6. Step 6: Final answer
    x = 54,556.55

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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.