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Finding the Fourth Proportional to 123,036.30, 169,783.80 and 69,324.48

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Solution

The fourth proportional to 123,036.30, 169,783.80 and 69,324.48 is: 95,664.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,036.30 : 169,783.80 = 69,324.48 : x
  2. Step 2: Convert to fraction form
    123,036.30/169,783.80 = 69,324.48/x
  3. Step 3: Cross multiply
    123,036.30x = 169,783.80 × 69,324.48
  4. Step 4: Simplify right side
    123,036.30x = 11,770,173,647.42
  5. Step 5: Solve for x
    x = 11,770,173,647.42/123,036.30
  6. Step 6: Final answer
    x = 95,664.24

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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.