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Finding the Fourth Proportional to 101,734.48, 140,402.10 and 56,426.68

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Solution

The fourth proportional to 101,734.48, 140,402.10 and 56,426.68 is: 77,873.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,734.48 : 140,402.10 = 56,426.68 : x
  2. Step 2: Convert to fraction form
    101,734.48/140,402.10 = 56,426.68/x
  3. Step 3: Cross multiply
    101,734.48x = 140,402.10 × 56,426.68
  4. Step 4: Simplify right side
    101,734.48x = 7,922,424,368.03
  5. Step 5: Solve for x
    x = 7,922,424,368.03/101,734.48
  6. Step 6: Final answer
    x = 77,873.54

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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.