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Finding the Fourth Proportional to 125,392.32, 188,106.12 and 36,652.50

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Solution

The fourth proportional to 125,392.32, 188,106.12 and 36,652.50 is: 54,983.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,392.32 : 188,106.12 = 36,652.50 : x
  2. Step 2: Convert to fraction form
    125,392.32/188,106.12 = 36,652.50/x
  3. Step 3: Cross multiply
    125,392.32x = 188,106.12 × 36,652.50
  4. Step 4: Simplify right side
    125,392.32x = 6,894,559,563.30
  5. Step 5: Solve for x
    x = 6,894,559,563.30/125,392.32
  6. Step 6: Final answer
    x = 54,983.91

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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.