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Finding the Fourth Proportional to 141,435.60, 212,148.60 and 36,255.60

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Solution

The fourth proportional to 141,435.60, 212,148.60 and 36,255.60 is: 54,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,435.60 : 212,148.60 = 36,255.60 : x
  2. Step 2: Convert to fraction form
    141,435.60/212,148.60 = 36,255.60/x
  3. Step 3: Cross multiply
    141,435.60x = 212,148.60 × 36,255.60
  4. Step 4: Simplify right side
    141,435.60x = 7,691,574,782.16
  5. Step 5: Solve for x
    x = 7,691,574,782.16/141,435.60
  6. Step 6: Final answer
    x = 54,382.17

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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.