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Finding the Fourth Proportional to 199,360.80, 299,084.40 and 66,218.40

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Solution

The fourth proportional to 199,360.80, 299,084.40 and 66,218.40 is: 99,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,360.80 : 299,084.40 = 66,218.40 : x
  2. Step 2: Convert to fraction form
    199,360.80/299,084.40 = 66,218.40/x
  3. Step 3: Cross multiply
    199,360.80x = 299,084.40 × 66,218.40
  4. Step 4: Simplify right side
    199,360.80x = 19,804,890,432.96
  5. Step 5: Solve for x
    x = 19,804,890,432.96/199,360.80
  6. Step 6: Final answer
    x = 99,341.95

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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.