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Finding the Fourth Proportional to 101,897.43, 140,569.74 and 61,041.84

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Solution

The fourth proportional to 101,897.43, 140,569.74 and 61,041.84 is: 84,208.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,897.43 : 140,569.74 = 61,041.84 : x
  2. Step 2: Convert to fraction form
    101,897.43/140,569.74 = 61,041.84/x
  3. Step 3: Cross multiply
    101,897.43x = 140,569.74 × 61,041.84
  4. Step 4: Simplify right side
    101,897.43x = 8,580,635,577.92
  5. Step 5: Solve for x
    x = 8,580,635,577.92/101,897.43
  6. Step 6: Final answer
    x = 84,208.56

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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.