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Finding the Fourth Proportional to 242,479.72, 363,486.28 and 124,206.76

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Solution

The fourth proportional to 242,479.72, 363,486.28 and 124,206.76 is: 186,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,479.72 : 363,486.28 = 124,206.76 : x
  2. Step 2: Convert to fraction form
    242,479.72/363,486.28 = 124,206.76/x
  3. Step 3: Cross multiply
    242,479.72x = 363,486.28 × 124,206.76
  4. Step 4: Simplify right side
    242,479.72x = 45,147,453,143.25
  5. Step 5: Solve for x
    x = 45,147,453,143.25/242,479.72
  6. Step 6: Final answer
    x = 186,190.64

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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.