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Finding the Fourth Proportional to 202,752.81, 279,793.91 and 112,106.39

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Solution

The fourth proportional to 202,752.81, 279,793.91 and 112,106.39 is: 154,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,752.81 : 279,793.91 = 112,106.39 : x
  2. Step 2: Convert to fraction form
    202,752.81/279,793.91 = 112,106.39/x
  3. Step 3: Cross multiply
    202,752.81x = 279,793.91 × 112,106.39
  4. Step 4: Simplify right side
    202,752.81x = 31,366,684,075.38
  5. Step 5: Solve for x
    x = 31,366,684,075.38/202,752.81
  6. Step 6: Final answer
    x = 154,704.07

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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.