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Finding the Fourth Proportional to 113,478.84, 156,599.52 and 62,490.54

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Solution

The fourth proportional to 113,478.84, 156,599.52 and 62,490.54 is: 86,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,478.84 : 156,599.52 = 62,490.54 : x
  2. Step 2: Convert to fraction form
    113,478.84/156,599.52 = 62,490.54/x
  3. Step 3: Cross multiply
    113,478.84x = 156,599.52 × 62,490.54
  4. Step 4: Simplify right side
    113,478.84x = 9,785,988,568.54
  5. Step 5: Solve for x
    x = 9,785,988,568.54/113,478.84
  6. Step 6: Final answer
    x = 86,236.24

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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.