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Finding the Fourth Proportional to 124,242.76, 171,450.31 and 75,925.48

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Solution

The fourth proportional to 124,242.76, 171,450.31 and 75,925.48 is: 104,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,242.76 : 171,450.31 = 75,925.48 : x
  2. Step 2: Convert to fraction form
    124,242.76/171,450.31 = 75,925.48/x
  3. Step 3: Cross multiply
    124,242.76x = 171,450.31 × 75,925.48
  4. Step 4: Simplify right side
    124,242.76x = 13,017,447,082.90
  5. Step 5: Solve for x
    x = 13,017,447,082.90/124,242.76
  6. Step 6: Final answer
    x = 104,774.29

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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.