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Finding the Fourth Proportional to 167,308.34, 230,850.61 and 99,315.72

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Solution

The fourth proportional to 167,308.34, 230,850.61 and 99,315.72 is: 137,034.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,308.34 : 230,850.61 = 99,315.72 : x
  2. Step 2: Convert to fraction form
    167,308.34/230,850.61 = 99,315.72/x
  3. Step 3: Cross multiply
    167,308.34x = 230,850.61 × 99,315.72
  4. Step 4: Simplify right side
    167,308.34x = 22,927,094,296.30
  5. Step 5: Solve for x
    x = 22,927,094,296.30/167,308.34
  6. Step 6: Final answer
    x = 137,034.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.