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Finding the Fourth Proportional to 167,168.91, 230,692.35 and 90,688.08

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Solution

The fourth proportional to 167,168.91, 230,692.35 and 90,688.08 is: 125,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,168.91 : 230,692.35 = 90,688.08 : x
  2. Step 2: Convert to fraction form
    167,168.91/230,692.35 = 90,688.08/x
  3. Step 3: Cross multiply
    167,168.91x = 230,692.35 × 90,688.08
  4. Step 4: Simplify right side
    167,168.91x = 20,921,046,292.19
  5. Step 5: Solve for x
    x = 20,921,046,292.19/167,168.91
  6. Step 6: Final answer
    x = 125,149.15

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1.5x scale

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.