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Finding the Fourth Proportional to 120,615.08, 167,211.16 and 114,216.30

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Solution

The fourth proportional to 120,615.08, 167,211.16 and 114,216.30 is: 158,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,615.08 : 167,211.16 = 114,216.30 : x
  2. Step 2: Convert to fraction form
    120,615.08/167,211.16 = 114,216.30/x
  3. Step 3: Cross multiply
    120,615.08x = 167,211.16 × 114,216.30
  4. Step 4: Simplify right side
    120,615.08x = 19,098,240,013.91
  5. Step 5: Solve for x
    x = 19,098,240,013.91/120,615.08
  6. Step 6: Final answer
    x = 158,340.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.