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Finding the Fourth Proportional to 261,531.44, 360,902.76 and 148,351.76

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Solution

The fourth proportional to 261,531.44, 360,902.76 and 148,351.76 is: 204,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,531.44 : 360,902.76 = 148,351.76 : x
  2. Step 2: Convert to fraction form
    261,531.44/360,902.76 = 148,351.76/x
  3. Step 3: Cross multiply
    261,531.44x = 360,902.76 × 148,351.76
  4. Step 4: Simplify right side
    261,531.44x = 53,540,559,634.86
  5. Step 5: Solve for x
    x = 53,540,559,634.86/261,531.44
  6. Step 6: Final answer
    x = 204,719.40

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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.