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Finding the Fourth Proportional to 317,358.96, 476,041.52 and 80,701.64

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Solution

The fourth proportional to 317,358.96, 476,041.52 and 80,701.64 is: 121,053.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,358.96 : 476,041.52 = 80,701.64 : x
  2. Step 2: Convert to fraction form
    317,358.96/476,041.52 = 80,701.64/x
  3. Step 3: Cross multiply
    317,358.96x = 476,041.52 × 80,701.64
  4. Step 4: Simplify right side
    317,358.96x = 38,417,330,373.53
  5. Step 5: Solve for x
    x = 38,417,330,373.53/317,358.96
  6. Step 6: Final answer
    x = 121,053.24

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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.