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Finding the Fourth Proportional to 104,866.40, 156,507.35 and 97,755.91

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Solution

The fourth proportional to 104,866.40, 156,507.35 and 97,755.91 is: 145,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,866.40 : 156,507.35 = 97,755.91 : x
  2. Step 2: Convert to fraction form
    104,866.40/156,507.35 = 97,755.91/x
  3. Step 3: Cross multiply
    104,866.40x = 156,507.35 × 97,755.91
  4. Step 4: Simplify right side
    104,866.40x = 15,299,517,540.89
  5. Step 5: Solve for x
    x = 15,299,517,540.89/104,866.40
  6. Step 6: Final answer
    x = 145,895.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.