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Finding the Fourth Proportional to 113,857.84, 156,977.56 and 93,364.64

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Solution

The fourth proportional to 113,857.84, 156,977.56 and 93,364.64 is: 128,723.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,857.84 : 156,977.56 = 93,364.64 : x
  2. Step 2: Convert to fraction form
    113,857.84/156,977.56 = 93,364.64/x
  3. Step 3: Cross multiply
    113,857.84x = 156,977.56 × 93,364.64
  4. Step 4: Simplify right side
    113,857.84x = 14,656,153,377.48
  5. Step 5: Solve for x
    x = 14,656,153,377.48/113,857.84
  6. Step 6: Final answer
    x = 128,723.27

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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.