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Finding the Fourth Proportional to 199,970.17, 299,955.56 and 80,081.11

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Solution

The fourth proportional to 199,970.17, 299,955.56 and 80,081.11 is: 120,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,970.17 : 299,955.56 = 80,081.11 : x
  2. Step 2: Convert to fraction form
    199,970.17/299,955.56 = 80,081.11/x
  3. Step 3: Cross multiply
    199,970.17x = 299,955.56 × 80,081.11
  4. Step 4: Simplify right side
    199,970.17x = 24,020,772,482.76
  5. Step 5: Solve for x
    x = 24,020,772,482.76/199,970.17
  6. Step 6: Final answer
    x = 120,121.78

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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.