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Finding the Fourth Proportional to 356,730.65, 535,105.72 and 104,005.03

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Solution

The fourth proportional to 356,730.65, 535,105.72 and 104,005.03 is: 156,010.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,730.65 : 535,105.72 = 104,005.03 : x
  2. Step 2: Convert to fraction form
    356,730.65/535,105.72 = 104,005.03/x
  3. Step 3: Cross multiply
    356,730.65x = 535,105.72 × 104,005.03
  4. Step 4: Simplify right side
    356,730.65x = 55,653,687,539.52
  5. Step 5: Solve for x
    x = 55,653,687,539.52/356,730.65
  6. Step 6: Final answer
    x = 156,010.39

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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.