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Finding the Fourth Proportional to 317,168.60, 475,634.30 and 127,565.01

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Solution

The fourth proportional to 317,168.60, 475,634.30 and 127,565.01 is: 191,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,168.60 : 475,634.30 = 127,565.01 : x
  2. Step 2: Convert to fraction form
    317,168.60/475,634.30 = 127,565.01/x
  3. Step 3: Cross multiply
    317,168.60x = 475,634.30 × 127,565.01
  4. Step 4: Simplify right side
    317,168.60x = 60,674,293,598.02
  5. Step 5: Solve for x
    x = 60,674,293,598.02/317,168.60
  6. Step 6: Final answer
    x = 191,299.82

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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.