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Finding the Fourth Proportional to 317,293.40, 475,955.88 and 104,082.80

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Solution

The fourth proportional to 317,293.40, 475,955.88 and 104,082.80 is: 156,129.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,293.40 : 475,955.88 = 104,082.80 : x
  2. Step 2: Convert to fraction form
    317,293.40/475,955.88 = 104,082.80/x
  3. Step 3: Cross multiply
    317,293.40x = 475,955.88 × 104,082.80
  4. Step 4: Simplify right side
    317,293.40x = 49,538,820,666.86
  5. Step 5: Solve for x
    x = 49,538,820,666.86/317,293.40
  6. Step 6: Final answer
    x = 156,129.38

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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.