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Finding the Fourth Proportional to 121,466.80, 167,616.96 and 70,475.58

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Solution

The fourth proportional to 121,466.80, 167,616.96 and 70,475.58 is: 97,252.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,466.80 : 167,616.96 = 70,475.58 : x
  2. Step 2: Convert to fraction form
    121,466.80/167,616.96 = 70,475.58/x
  3. Step 3: Cross multiply
    121,466.80x = 167,616.96 × 70,475.58
  4. Step 4: Simplify right side
    121,466.80x = 11,812,901,635.75
  5. Step 5: Solve for x
    x = 11,812,901,635.75/121,466.80
  6. Step 6: Final answer
    x = 97,252.11

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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.