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Finding the Fourth Proportional to 186,042.78, 256,733.46 and 105,477.66

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Solution

The fourth proportional to 186,042.78, 256,733.46 and 105,477.66 is: 145,556.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,042.78 : 256,733.46 = 105,477.66 : x
  2. Step 2: Convert to fraction form
    186,042.78/256,733.46 = 105,477.66/x
  3. Step 3: Cross multiply
    186,042.78x = 256,733.46 × 105,477.66
  4. Step 4: Simplify right side
    186,042.78x = 27,079,644,604.50
  5. Step 5: Solve for x
    x = 27,079,644,604.50/186,042.78
  6. Step 6: Final answer
    x = 145,556.01

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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.