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Finding the Fourth Proportional to 113,611.78, 156,772.02 and 62,622.10

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Solution

The fourth proportional to 113,611.78, 156,772.02 and 62,622.10 is: 86,411.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,611.78 : 156,772.02 = 62,622.10 : x
  2. Step 2: Convert to fraction form
    113,611.78/156,772.02 = 62,622.10/x
  3. Step 3: Cross multiply
    113,611.78x = 156,772.02 × 62,622.10
  4. Step 4: Simplify right side
    113,611.78x = 9,817,393,113.64
  5. Step 5: Solve for x
    x = 9,817,393,113.64/113,611.78
  6. Step 6: Final answer
    x = 86,411.75

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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.