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Finding the Fourth Proportional to 124,315.88, 171,568.30 and 75,915.14

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Solution

The fourth proportional to 124,315.88, 171,568.30 and 75,915.14 is: 104,770.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,315.88 : 171,568.30 = 75,915.14 : x
  2. Step 2: Convert to fraction form
    124,315.88/171,568.30 = 75,915.14/x
  3. Step 3: Cross multiply
    124,315.88x = 171,568.30 × 75,915.14
  4. Step 4: Simplify right side
    124,315.88x = 13,024,631,514.06
  5. Step 5: Solve for x
    x = 13,024,631,514.06/124,315.88
  6. Step 6: Final answer
    x = 104,770.46

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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.