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Finding the Fourth Proportional to 115,903.30, 173,854.95 and 96,220.30

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Solution

The fourth proportional to 115,903.30, 173,854.95 and 96,220.30 is: 144,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,903.30 : 173,854.95 = 96,220.30 : x
  2. Step 2: Convert to fraction form
    115,903.30/173,854.95 = 96,220.30/x
  3. Step 3: Cross multiply
    115,903.30x = 173,854.95 × 96,220.30
  4. Step 4: Simplify right side
    115,903.30x = 16,728,375,445.49
  5. Step 5: Solve for x
    x = 16,728,375,445.49/115,903.30
  6. Step 6: Final answer
    x = 144,330.45

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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.