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Finding the Fourth Proportional to 115,502.40, 173,253.60 and 103,692.60

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Solution

The fourth proportional to 115,502.40, 173,253.60 and 103,692.60 is: 155,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,502.40 : 173,253.60 = 103,692.60 : x
  2. Step 2: Convert to fraction form
    115,502.40/173,253.60 = 103,692.60/x
  3. Step 3: Cross multiply
    115,502.40x = 173,253.60 × 103,692.60
  4. Step 4: Simplify right side
    115,502.40x = 17,965,116,243.36
  5. Step 5: Solve for x
    x = 17,965,116,243.36/115,502.40
  6. Step 6: Final answer
    x = 155,538.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.