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Finding the Fourth Proportional to 317,053.99, 475,597.71 and 80,398.72

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Solution

The fourth proportional to 317,053.99, 475,597.71 and 80,398.72 is: 120,602.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,053.99 : 475,597.71 = 80,398.72 : x
  2. Step 2: Convert to fraction form
    317,053.99/475,597.71 = 80,398.72/x
  3. Step 3: Cross multiply
    317,053.99x = 475,597.71 × 80,398.72
  4. Step 4: Simplify right side
    317,053.99x = 38,237,447,118.93
  5. Step 5: Solve for x
    x = 38,237,447,118.93/317,053.99
  6. Step 6: Final answer
    x = 120,602.32

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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.