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Finding the Fourth Proportional to 353,514.84, 530,273.36 and 87,275.39

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Solution

The fourth proportional to 353,514.84, 530,273.36 and 87,275.39 is: 130,913.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,514.84 : 530,273.36 = 87,275.39 : x
  2. Step 2: Convert to fraction form
    353,514.84/530,273.36 = 87,275.39/x
  3. Step 3: Cross multiply
    353,514.84x = 530,273.36 × 87,275.39
  4. Step 4: Simplify right side
    353,514.84x = 46,279,811,212.87
  5. Step 5: Solve for x
    x = 46,279,811,212.87/353,514.84
  6. Step 6: Final answer
    x = 130,913.35

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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.