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Finding the Fourth Proportional to 109,608.68, 151,244.79 and 61,204.70

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Solution

The fourth proportional to 109,608.68, 151,244.79 and 61,204.70 is: 84,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,608.68 : 151,244.79 = 61,204.70 : x
  2. Step 2: Convert to fraction form
    109,608.68/151,244.79 = 61,204.70/x
  3. Step 3: Cross multiply
    109,608.68x = 151,244.79 × 61,204.70
  4. Step 4: Simplify right side
    109,608.68x = 9,256,891,998.51
  5. Step 5: Solve for x
    x = 9,256,891,998.51/109,608.68
  6. Step 6: Final answer
    x = 84,454.00

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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.