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Finding the Fourth Proportional to 186,143.52, 256,883.76 and 101,255.52

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Solution

The fourth proportional to 186,143.52, 256,883.76 and 101,255.52 is: 139,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,143.52 : 256,883.76 = 101,255.52 : x
  2. Step 2: Convert to fraction form
    186,143.52/256,883.76 = 101,255.52/x
  3. Step 3: Cross multiply
    186,143.52x = 256,883.76 × 101,255.52
  4. Step 4: Simplify right side
    186,143.52x = 26,010,898,698.36
  5. Step 5: Solve for x
    x = 26,010,898,698.36/186,143.52
  6. Step 6: Final answer
    x = 139,735.72

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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.