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Finding the Fourth Proportional to 195,883.76, 270,411.54 and 115,285.52

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Solution

The fourth proportional to 195,883.76, 270,411.54 and 115,285.52 is: 159,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,883.76 : 270,411.54 = 115,285.52 : x
  2. Step 2: Convert to fraction form
    195,883.76/270,411.54 = 115,285.52/x
  3. Step 3: Cross multiply
    195,883.76x = 270,411.54 × 115,285.52
  4. Step 4: Simplify right side
    195,883.76x = 31,174,535,002.90
  5. Step 5: Solve for x
    x = 31,174,535,002.90/195,883.76
  6. Step 6: Final answer
    x = 159,148.13

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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.