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Finding the Fourth Proportional to 124,430.88, 171,716.40 and 67,845.12

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Solution

The fourth proportional to 124,430.88, 171,716.40 and 67,845.12 is: 93,627.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,430.88 : 171,716.40 = 67,845.12 : x
  2. Step 2: Convert to fraction form
    124,430.88/171,716.40 = 67,845.12/x
  3. Step 3: Cross multiply
    124,430.88x = 171,716.40 × 67,845.12
  4. Step 4: Simplify right side
    124,430.88x = 11,650,119,763.97
  5. Step 5: Solve for x
    x = 11,650,119,763.97/124,430.88
  6. Step 6: Final answer
    x = 93,627.24

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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.