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Finding the Fourth Proportional to 316,807.20, 475,055.28 and 117,119.52

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Solution

The fourth proportional to 316,807.20, 475,055.28 and 117,119.52 is: 175,621.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,807.20 : 475,055.28 = 117,119.52 : x
  2. Step 2: Convert to fraction form
    316,807.20/475,055.28 = 117,119.52/x
  3. Step 3: Cross multiply
    316,807.20x = 475,055.28 × 117,119.52
  4. Step 4: Simplify right side
    316,807.20x = 55,638,246,367.07
  5. Step 5: Solve for x
    x = 55,638,246,367.07/316,807.20
  6. Step 6: Final answer
    x = 175,621.79

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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.