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Finding the Fourth Proportional to 113,009.60, 169,406.40 and 41,913.20

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Solution

The fourth proportional to 113,009.60, 169,406.40 and 41,913.20 is: 62,829.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,009.60 : 169,406.40 = 41,913.20 : x
  2. Step 2: Convert to fraction form
    113,009.60/169,406.40 = 41,913.20/x
  3. Step 3: Cross multiply
    113,009.60x = 169,406.40 × 41,913.20
  4. Step 4: Simplify right side
    113,009.60x = 7,100,364,324.48
  5. Step 5: Solve for x
    x = 7,100,364,324.48/113,009.60
  6. Step 6: Final answer
    x = 62,829.74

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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.