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Finding the Fourth Proportional to 123,809.64, 185,689.80 and 60,602.58

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Solution

The fourth proportional to 123,809.64, 185,689.80 and 60,602.58 is: 90,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,809.64 : 185,689.80 = 60,602.58 : x
  2. Step 2: Convert to fraction form
    123,809.64/185,689.80 = 60,602.58/x
  3. Step 3: Cross multiply
    123,809.64x = 185,689.80 × 60,602.58
  4. Step 4: Simplify right side
    123,809.64x = 11,253,280,959.68
  5. Step 5: Solve for x
    x = 11,253,280,959.68/123,809.64
  6. Step 6: Final answer
    x = 90,891.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.