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Finding the Fourth Proportional to 113,750.88, 156,891.60 and 83,526.72

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Solution

The fourth proportional to 113,750.88, 156,891.60 and 83,526.72 is: 115,204.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,750.88 : 156,891.60 = 83,526.72 : x
  2. Step 2: Convert to fraction form
    113,750.88/156,891.60 = 83,526.72/x
  3. Step 3: Cross multiply
    113,750.88x = 156,891.60 × 83,526.72
  4. Step 4: Simplify right side
    113,750.88x = 13,104,640,743.55
  5. Step 5: Solve for x
    x = 13,104,640,743.55/113,750.88
  6. Step 6: Final answer
    x = 115,204.74

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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.