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Finding the Fourth Proportional to 123,042.60, 183,889.59 and 89,832.60

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Solution

The fourth proportional to 123,042.60, 183,889.59 and 89,832.60 is: 134,256.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,042.60 : 183,889.59 = 89,832.60 : x
  2. Step 2: Convert to fraction form
    123,042.60/183,889.59 = 89,832.60/x
  3. Step 3: Cross multiply
    123,042.60x = 183,889.59 × 89,832.60
  4. Step 4: Simplify right side
    123,042.60x = 16,519,279,982.63
  5. Step 5: Solve for x
    x = 16,519,279,982.63/123,042.60
  6. Step 6: Final answer
    x = 134,256.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.