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Finding the Fourth Proportional to 76,273.92, 105,202.80 and 75,107.52

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Solution

The fourth proportional to 76,273.92, 105,202.80 and 75,107.52 is: 103,594.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,273.92 : 105,202.80 = 75,107.52 : x
  2. Step 2: Convert to fraction form
    76,273.92/105,202.80 = 75,107.52/x
  3. Step 3: Cross multiply
    76,273.92x = 105,202.80 × 75,107.52
  4. Step 4: Simplify right side
    76,273.92x = 7,901,521,405.06
  5. Step 5: Solve for x
    x = 7,901,521,405.06/76,273.92
  6. Step 6: Final answer
    x = 103,594.01

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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.