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Finding the Fourth Proportional to 141,661.60, 212,492.40 and 96,755.20

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Solution

The fourth proportional to 141,661.60, 212,492.40 and 96,755.20 is: 145,132.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,661.60 : 212,492.40 = 96,755.20 : x
  2. Step 2: Convert to fraction form
    141,661.60/212,492.40 = 96,755.20/x
  3. Step 3: Cross multiply
    141,661.60x = 212,492.40 × 96,755.20
  4. Step 4: Simplify right side
    141,661.60x = 20,559,744,660.48
  5. Step 5: Solve for x
    x = 20,559,744,660.48/141,661.60
  6. Step 6: Final answer
    x = 145,132.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.