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Finding the Fourth Proportional to 125,395.32, 188,110.62 and 36,655.50

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Solution

The fourth proportional to 125,395.32, 188,110.62 and 36,655.50 is: 54,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,395.32 : 188,110.62 = 36,655.50 : x
  2. Step 2: Convert to fraction form
    125,395.32/188,110.62 = 36,655.50/x
  3. Step 3: Cross multiply
    125,395.32x = 188,110.62 × 36,655.50
  4. Step 4: Simplify right side
    125,395.32x = 6,895,288,831.41
  5. Step 5: Solve for x
    x = 6,895,288,831.41/125,395.32
  6. Step 6: Final answer
    x = 54,988.41

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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.