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Finding the Fourth Proportional to 151,478.01, 209,041.11 and 83,497.59

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Solution

The fourth proportional to 151,478.01, 209,041.11 and 83,497.59 is: 115,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,478.01 : 209,041.11 = 83,497.59 : x
  2. Step 2: Convert to fraction form
    151,478.01/209,041.11 = 83,497.59/x
  3. Step 3: Cross multiply
    151,478.01x = 209,041.11 × 83,497.59
  4. Step 4: Simplify right side
    151,478.01x = 17,454,428,895.92
  5. Step 5: Solve for x
    x = 17,454,428,895.92/151,478.01
  6. Step 6: Final answer
    x = 115,227.48

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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.