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Finding the Fourth Proportional to 141,851.69, 195,752.67 and 77,321.54

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Solution

The fourth proportional to 141,851.69, 195,752.67 and 77,321.54 is: 106,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,851.69 : 195,752.67 = 77,321.54 : x
  2. Step 2: Convert to fraction form
    141,851.69/195,752.67 = 77,321.54/x
  3. Step 3: Cross multiply
    141,851.69x = 195,752.67 × 77,321.54
  4. Step 4: Simplify right side
    141,851.69x = 15,135,897,903.51
  5. Step 5: Solve for x
    x = 15,135,897,903.51/141,851.69
  6. Step 6: Final answer
    x = 106,702.27

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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.