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Finding the Fourth Proportional to 101,792.52, 140,473.71 and 57,080.52

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Solution

The fourth proportional to 101,792.52, 140,473.71 and 57,080.52 is: 78,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,792.52 : 140,473.71 = 57,080.52 : x
  2. Step 2: Convert to fraction form
    101,792.52/140,473.71 = 57,080.52/x
  3. Step 3: Cross multiply
    101,792.52x = 140,473.71 × 57,080.52
  4. Step 4: Simplify right side
    101,792.52x = 8,018,312,413.13
  5. Step 5: Solve for x
    x = 8,018,312,413.13/101,792.52
  6. Step 6: Final answer
    x = 78,771.14

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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.