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Finding the Fourth Proportional to 334,387.70, 501,581.55 and 97,720.82

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Solution

The fourth proportional to 334,387.70, 501,581.55 and 97,720.82 is: 146,581.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,387.70 : 501,581.55 = 97,720.82 : x
  2. Step 2: Convert to fraction form
    334,387.70/501,581.55 = 97,720.82/x
  3. Step 3: Cross multiply
    334,387.70x = 501,581.55 × 97,720.82
  4. Step 4: Simplify right side
    334,387.70x = 49,014,960,362.87
  5. Step 5: Solve for x
    x = 49,014,960,362.87/334,387.70
  6. Step 6: Final answer
    x = 146,581.23

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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.