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Finding the Fourth Proportional to 352,336.55, 528,502.28 and 86,094.61

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Solution

The fourth proportional to 352,336.55, 528,502.28 and 86,094.61 is: 129,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,336.55 : 528,502.28 = 86,094.61 : x
  2. Step 2: Convert to fraction form
    352,336.55/528,502.28 = 86,094.61/x
  3. Step 3: Cross multiply
    352,336.55x = 528,502.28 × 86,094.61
  4. Step 4: Simplify right side
    352,336.55x = 45,501,199,217.20
  5. Step 5: Solve for x
    x = 45,501,199,217.20/352,336.55
  6. Step 6: Final answer
    x = 129,141.30

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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.