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Finding the Fourth Proportional to 124,082.84, 171,264.74 and 70,399.28

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Solution

The fourth proportional to 124,082.84, 171,264.74 and 70,399.28 is: 97,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,082.84 : 171,264.74 = 70,399.28 : x
  2. Step 2: Convert to fraction form
    124,082.84/171,264.74 = 70,399.28/x
  3. Step 3: Cross multiply
    124,082.84x = 171,264.74 × 70,399.28
  4. Step 4: Simplify right side
    124,082.84x = 12,056,914,385.39
  5. Step 5: Solve for x
    x = 12,056,914,385.39/124,082.84
  6. Step 6: Final answer
    x = 97,168.27

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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.