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Finding the Fourth Proportional to 202,359.76, 279,242.13 and 111,701.17

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Solution

The fourth proportional to 202,359.76, 279,242.13 and 111,701.17 is: 154,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,359.76 : 279,242.13 = 111,701.17 : x
  2. Step 2: Convert to fraction form
    202,359.76/279,242.13 = 111,701.17/x
  3. Step 3: Cross multiply
    202,359.76x = 279,242.13 × 111,701.17
  4. Step 4: Simplify right side
    202,359.76x = 31,191,672,634.29
  5. Step 5: Solve for x
    x = 31,191,672,634.29/202,359.76
  6. Step 6: Final answer
    x = 154,139.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.