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Finding the Fourth Proportional to 316,757.52, 475,052.58 and 136,905.66

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Solution

The fourth proportional to 316,757.52, 475,052.58 and 136,905.66 is: 205,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,757.52 : 475,052.58 = 136,905.66 : x
  2. Step 2: Convert to fraction form
    316,757.52/475,052.58 = 136,905.66/x
  3. Step 3: Cross multiply
    316,757.52x = 475,052.58 × 136,905.66
  4. Step 4: Simplify right side
    316,757.52x = 65,037,386,999.60
  5. Step 5: Solve for x
    x = 65,037,386,999.60/316,757.52
  6. Step 6: Final answer
    x = 205,322.31

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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.