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Finding the Fourth Proportional to 250,284.26, 375,259.56 and 130,045.72

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Solution

The fourth proportional to 250,284.26, 375,259.56 and 130,045.72 is: 194,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,284.26 : 375,259.56 = 130,045.72 : x
  2. Step 2: Convert to fraction form
    250,284.26/375,259.56 = 130,045.72/x
  3. Step 3: Cross multiply
    250,284.26x = 375,259.56 × 130,045.72
  4. Step 4: Simplify right side
    250,284.26x = 48,800,899,667.08
  5. Step 5: Solve for x
    x = 48,800,899,667.08/250,284.26
  6. Step 6: Final answer
    x = 194,981.90

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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.