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Finding the Fourth Proportional to 195,595.98, 269,903.79 and 155,407.02

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Solution

The fourth proportional to 195,595.98, 269,903.79 and 155,407.02 is: 214,446.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,595.98 : 269,903.79 = 155,407.02 : x
  2. Step 2: Convert to fraction form
    195,595.98/269,903.79 = 155,407.02/x
  3. Step 3: Cross multiply
    195,595.98x = 269,903.79 × 155,407.02
  4. Step 4: Simplify right side
    195,595.98x = 41,944,943,690.61
  5. Step 5: Solve for x
    x = 41,944,943,690.61/195,595.98
  6. Step 6: Final answer
    x = 214,446.86

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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.