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Finding the Fourth Proportional to 353,632.62, 530,443.73 and 87,393.12

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Solution

The fourth proportional to 353,632.62, 530,443.73 and 87,393.12 is: 131,088.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,632.62 : 530,443.73 = 87,393.12 : x
  2. Step 2: Convert to fraction form
    353,632.62/530,443.73 = 87,393.12/x
  3. Step 3: Cross multiply
    353,632.62x = 530,443.73 × 87,393.12
  4. Step 4: Simplify right side
    353,632.62x = 46,357,132,112.17
  5. Step 5: Solve for x
    x = 46,357,132,112.17/353,632.62
  6. Step 6: Final answer
    x = 131,088.39

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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.