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Finding the Fourth Proportional to 215,161.76, 322,610.96 and 88,762.88

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Solution

The fourth proportional to 215,161.76, 322,610.96 and 88,762.88 is: 133,090.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,161.76 : 322,610.96 = 88,762.88 : x
  2. Step 2: Convert to fraction form
    215,161.76/322,610.96 = 88,762.88/x
  3. Step 3: Cross multiply
    215,161.76x = 322,610.96 × 88,762.88
  4. Step 4: Simplify right side
    215,161.76x = 28,635,877,929.16
  5. Step 5: Solve for x
    x = 28,635,877,929.16/215,161.76
  6. Step 6: Final answer
    x = 133,090.00

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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.