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Finding the Fourth Proportional to 123,036.79, 169,784.49 and 69,324.98

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Solution

The fourth proportional to 123,036.79, 169,784.49 and 69,324.98 is: 95,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.79 : 169,784.49 = 69,324.98 : x
  2. Step 2: Convert to fraction form
    123,036.79/169,784.49 = 69,324.98/x
  3. Step 3: Cross multiply
    123,036.79x = 169,784.49 × 69,324.98
  4. Step 4: Simplify right side
    123,036.79x = 11,770,306,373.56
  5. Step 5: Solve for x
    x = 11,770,306,373.56/123,036.79
  6. Step 6: Final answer
    x = 95,664.93

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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.