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Finding the Fourth Proportional to 311,059.17, 429,175.67 and 175,085.18

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Solution

The fourth proportional to 311,059.17, 429,175.67 and 175,085.18 is: 241,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,059.17 : 429,175.67 = 175,085.18 : x
  2. Step 2: Convert to fraction form
    311,059.17/429,175.67 = 175,085.18/x
  3. Step 3: Cross multiply
    311,059.17x = 429,175.67 × 175,085.18
  4. Step 4: Simplify right side
    311,059.17x = 75,142,298,021.68
  5. Step 5: Solve for x
    x = 75,142,298,021.68/311,059.17
  6. Step 6: Final answer
    x = 241,569.15

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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.