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Finding the Fourth Proportional to 123,445.76, 170,369.01 and 69,734.24

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Solution

The fourth proportional to 123,445.76, 170,369.01 and 69,734.24 is: 96,241.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,445.76 : 170,369.01 = 69,734.24 : x
  2. Step 2: Convert to fraction form
    123,445.76/170,369.01 = 69,734.24/x
  3. Step 3: Cross multiply
    123,445.76x = 170,369.01 × 69,734.24
  4. Step 4: Simplify right side
    123,445.76x = 11,880,553,431.90
  5. Step 5: Solve for x
    x = 11,880,553,431.90/123,445.76
  6. Step 6: Final answer
    x = 96,241.08

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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.