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Finding the Fourth Proportional to 124,082.96, 171,264.87 and 70,399.40

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Solution

The fourth proportional to 124,082.96, 171,264.87 and 70,399.40 is: 97,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,082.96 : 171,264.87 = 70,399.40 : x
  2. Step 2: Convert to fraction form
    124,082.96/171,264.87 = 70,399.40/x
  3. Step 3: Cross multiply
    124,082.96x = 171,264.87 × 70,399.40
  4. Step 4: Simplify right side
    124,082.96x = 12,056,943,232.75
  5. Step 5: Solve for x
    x = 12,056,943,232.75/124,082.96
  6. Step 6: Final answer
    x = 97,168.41

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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.