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Finding the Fourth Proportional to 352,463.32, 528,798.66 and 141,992.92

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Solution

The fourth proportional to 352,463.32, 528,798.66 and 141,992.92 is: 213,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,463.32 : 528,798.66 = 141,992.92 : x
  2. Step 2: Convert to fraction form
    352,463.32/528,798.66 = 141,992.92/x
  3. Step 3: Cross multiply
    352,463.32x = 528,798.66 × 141,992.92
  4. Step 4: Simplify right side
    352,463.32x = 75,085,665,825.49
  5. Step 5: Solve for x
    x = 75,085,665,825.49/352,463.32
  6. Step 6: Final answer
    x = 213,031.15

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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.