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Finding the Fourth Proportional to 186,042.80, 279,064.20 and 133,554.80

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Solution

The fourth proportional to 186,042.80, 279,064.20 and 133,554.80 is: 200,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,042.80 : 279,064.20 = 133,554.80 : x
  2. Step 2: Convert to fraction form
    186,042.80/279,064.20 = 133,554.80/x
  3. Step 3: Cross multiply
    186,042.80x = 279,064.20 × 133,554.80
  4. Step 4: Simplify right side
    186,042.80x = 37,270,363,418.16
  5. Step 5: Solve for x
    x = 37,270,363,418.16/186,042.80
  6. Step 6: Final answer
    x = 200,332.20

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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.