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Finding the Fourth Proportional to 124,340, 186,587.72 and 50,468

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Solution

The fourth proportional to 124,340, 186,587.72 and 50,468 is: 75,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,340 : 186,587.72 = 50,468 : x
  2. Step 2: Convert to fraction form
    124,340/186,587.72 = 50,468/x
  3. Step 3: Cross multiply
    124,340x = 186,587.72 × 50,468
  4. Step 4: Simplify right side
    124,340x = 9,416,709,052.96
  5. Step 5: Solve for x
    x = 9,416,709,052.96/124,340
  6. Step 6: Final answer
    x = 75,733.55

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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.