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Finding the Fourth Proportional to 259,128.58, 357,592.58 and 144,404.70

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Solution

The fourth proportional to 259,128.58, 357,592.58 and 144,404.70 is: 199,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,128.58 : 357,592.58 = 144,404.70 : x
  2. Step 2: Convert to fraction form
    259,128.58/357,592.58 = 144,404.70/x
  3. Step 3: Cross multiply
    259,128.58x = 357,592.58 × 144,404.70
  4. Step 4: Simplify right side
    259,128.58x = 51,638,048,624.65
  5. Step 5: Solve for x
    x = 51,638,048,624.65/259,128.58
  6. Step 6: Final answer
    x = 199,275.78

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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.