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Finding the Fourth Proportional to 352,663.43, 528,926.25 and 112,712.96

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Solution

The fourth proportional to 352,663.43, 528,926.25 and 112,712.96 is: 169,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,663.43 : 528,926.25 = 112,712.96 : x
  2. Step 2: Convert to fraction form
    352,663.43/528,926.25 = 112,712.96/x
  3. Step 3: Cross multiply
    352,663.43x = 528,926.25 × 112,712.96
  4. Step 4: Simplify right side
    352,663.43x = 59,616,843,259.20
  5. Step 5: Solve for x
    x = 59,616,843,259.20/352,663.43
  6. Step 6: Final answer
    x = 169,047.42

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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.