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Finding the Fourth Proportional to 97,113.60, 134,037.45 and 65,264.05

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Solution

The fourth proportional to 97,113.60, 134,037.45 and 65,264.05 is: 90,078.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,113.60 : 134,037.45 = 65,264.05 : x
  2. Step 2: Convert to fraction form
    97,113.60/134,037.45 = 65,264.05/x
  3. Step 3: Cross multiply
    97,113.60x = 134,037.45 × 65,264.05
  4. Step 4: Simplify right side
    97,113.60x = 8,747,826,252.26
  5. Step 5: Solve for x
    x = 8,747,826,252.26/97,113.60
  6. Step 6: Final answer
    x = 90,078.28

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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.