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Finding the Fourth Proportional to 347,424.51, 521,147.30 and 119,717.31

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Solution

The fourth proportional to 347,424.51, 521,147.30 and 119,717.31 is: 179,579.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,424.51 : 521,147.30 = 119,717.31 : x
  2. Step 2: Convert to fraction form
    347,424.51/521,147.30 = 119,717.31/x
  3. Step 3: Cross multiply
    347,424.51x = 521,147.30 × 119,717.31
  4. Step 4: Simplify right side
    347,424.51x = 62,390,352,271.18
  5. Step 5: Solve for x
    x = 62,390,352,271.18/347,424.51
  6. Step 6: Final answer
    x = 179,579.59

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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.