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Finding the Fourth Proportional to 261,026.80, 391,540.02 and 64,034.80

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Solution

The fourth proportional to 261,026.80, 391,540.02 and 64,034.80 is: 96,052.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,026.80 : 391,540.02 = 64,034.80 : x
  2. Step 2: Convert to fraction form
    261,026.80/391,540.02 = 64,034.80/x
  3. Step 3: Cross multiply
    261,026.80x = 391,540.02 × 64,034.80
  4. Step 4: Simplify right side
    261,026.80x = 25,072,186,872.70
  5. Step 5: Solve for x
    x = 25,072,186,872.70/261,026.80
  6. Step 6: Final answer
    x = 96,052.16

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1.5x scale

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.