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Finding the Fourth Proportional to 151,718.96, 209,445 and 88,046.48

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Solution

The fourth proportional to 151,718.96, 209,445 and 88,046.48 is: 121,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,718.96 : 209,445 = 88,046.48 : x
  2. Step 2: Convert to fraction form
    151,718.96/209,445 = 88,046.48/x
  3. Step 3: Cross multiply
    151,718.96x = 209,445 × 88,046.48
  4. Step 4: Simplify right side
    151,718.96x = 18,440,895,003.60
  5. Step 5: Solve for x
    x = 18,440,895,003.60/151,718.96
  6. Step 6: Final answer
    x = 121,546.41

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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.