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Finding the Fourth Proportional to 141,387, 195,015.96 and 96,039.60

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Solution

The fourth proportional to 141,387, 195,015.96 and 96,039.60 is: 132,468.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,387 : 195,015.96 = 96,039.60 : x
  2. Step 2: Convert to fraction form
    141,387/195,015.96 = 96,039.60/x
  3. Step 3: Cross multiply
    141,387x = 195,015.96 × 96,039.60
  4. Step 4: Simplify right side
    141,387x = 18,729,254,792.02
  5. Step 5: Solve for x
    x = 18,729,254,792.02/141,387
  6. Step 6: Final answer
    x = 132,468.01

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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.