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Finding the Fourth Proportional to 317,751.81, 476,627.34 and 81,094.52

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Solution

The fourth proportional to 317,751.81, 476,627.34 and 81,094.52 is: 121,641.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,751.81 : 476,627.34 = 81,094.52 : x
  2. Step 2: Convert to fraction form
    317,751.81/476,627.34 = 81,094.52/x
  3. Step 3: Cross multiply
    317,751.81x = 476,627.34 × 81,094.52
  4. Step 4: Simplify right side
    317,751.81x = 38,651,865,356.18
  5. Step 5: Solve for x
    x = 38,651,865,356.18/317,751.81
  6. Step 6: Final answer
    x = 121,641.68

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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.