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Finding the Fourth Proportional to 123,000.65, 169,735.65 and 68,549.93

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Solution

The fourth proportional to 123,000.65, 169,735.65 and 68,549.93 is: 94,595.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,000.65 : 169,735.65 = 68,549.93 : x
  2. Step 2: Convert to fraction form
    123,000.65/169,735.65 = 68,549.93/x
  3. Step 3: Cross multiply
    123,000.65x = 169,735.65 × 68,549.93
  4. Step 4: Simplify right side
    123,000.65x = 11,635,366,077.33
  5. Step 5: Solve for x
    x = 11,635,366,077.33/123,000.65
  6. Step 6: Final answer
    x = 94,595.97

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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.