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Finding the Fourth Proportional to 250,378.18, 375,628.83 and 72,886.74

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Solution

The fourth proportional to 250,378.18, 375,628.83 and 72,886.74 is: 109,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,378.18 : 375,628.83 = 72,886.74 : x
  2. Step 2: Convert to fraction form
    250,378.18/375,628.83 = 72,886.74/x
  3. Step 3: Cross multiply
    250,378.18x = 375,628.83 × 72,886.74
  4. Step 4: Simplify right side
    250,378.18x = 27,378,360,868.71
  5. Step 5: Solve for x
    x = 27,378,360,868.71/250,378.18
  6. Step 6: Final answer
    x = 109,348.03

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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.