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Finding the Fourth Proportional to 316,525.60, 474,793.28 and 103,292.64

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Solution

The fourth proportional to 316,525.60, 474,793.28 and 103,292.64 is: 154,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,525.60 : 474,793.28 = 103,292.64 : x
  2. Step 2: Convert to fraction form
    316,525.60/474,793.28 = 103,292.64/x
  3. Step 3: Cross multiply
    316,525.60x = 474,793.28 × 103,292.64
  4. Step 4: Simplify right side
    316,525.60x = 49,042,651,345.46
  5. Step 5: Solve for x
    x = 49,042,651,345.46/316,525.60
  6. Step 6: Final answer
    x = 154,940.55

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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.