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Finding the Fourth Proportional to 235,119.62, 324,465 and 127,689.68

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Solution

The fourth proportional to 235,119.62, 324,465 and 127,689.68 is: 176,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,119.62 : 324,465 = 127,689.68 : x
  2. Step 2: Convert to fraction form
    235,119.62/324,465 = 127,689.68/x
  3. Step 3: Cross multiply
    235,119.62x = 324,465 × 127,689.68
  4. Step 4: Simplify right side
    235,119.62x = 41,430,832,021.20
  5. Step 5: Solve for x
    x = 41,430,832,021.20/235,119.62
  6. Step 6: Final answer
    x = 176,211.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.