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Finding the Fourth Proportional to 288,094.54, 432,141.80 and 77,732.47

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Solution

The fourth proportional to 288,094.54, 432,141.80 and 77,732.47 is: 116,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,094.54 : 432,141.80 = 77,732.47 : x
  2. Step 2: Convert to fraction form
    288,094.54/432,141.80 = 77,732.47/x
  3. Step 3: Cross multiply
    288,094.54x = 432,141.80 × 77,732.47
  4. Step 4: Simplify right side
    288,094.54x = 33,591,450,864.67
  5. Step 5: Solve for x
    x = 33,591,450,864.67/288,094.54
  6. Step 6: Final answer
    x = 116,598.71

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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.