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Finding the Fourth Proportional to 349,085.60, 523,282.80 and 171,447.20

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Solution

The fourth proportional to 349,085.60, 523,282.80 and 171,447.20 is: 257,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,085.60 : 523,282.80 = 171,447.20 : x
  2. Step 2: Convert to fraction form
    349,085.60/523,282.80 = 171,447.20/x
  3. Step 3: Cross multiply
    349,085.60x = 523,282.80 × 171,447.20
  4. Step 4: Simplify right side
    349,085.60x = 89,715,370,868.16
  5. Step 5: Solve for x
    x = 89,715,370,868.16/349,085.60
  6. Step 6: Final answer
    x = 257,001.06

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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.