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Finding the Fourth Proportional to 199,230.60, 299,040.30 and 99,503.40

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Solution

The fourth proportional to 199,230.60, 299,040.30 and 99,503.40 is: 149,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,230.60 : 299,040.30 = 99,503.40 : x
  2. Step 2: Convert to fraction form
    199,230.60/299,040.30 = 99,503.40/x
  3. Step 3: Cross multiply
    199,230.60x = 299,040.30 × 99,503.40
  4. Step 4: Simplify right side
    199,230.60x = 29,755,526,587.02
  5. Step 5: Solve for x
    x = 29,755,526,587.02/199,230.60
  6. Step 6: Final answer
    x = 149,352.19

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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.