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Finding the Fourth Proportional to 343,298.67, 514,821.60 and 118,601.43

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Solution

The fourth proportional to 343,298.67, 514,821.60 and 118,601.43 is: 177,858.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,298.67 : 514,821.60 = 118,601.43 : x
  2. Step 2: Convert to fraction form
    343,298.67/514,821.60 = 118,601.43/x
  3. Step 3: Cross multiply
    343,298.67x = 514,821.60 × 118,601.43
  4. Step 4: Simplify right side
    343,298.67x = 61,058,577,954.89
  5. Step 5: Solve for x
    x = 61,058,577,954.89/343,298.67
  6. Step 6: Final answer
    x = 177,858.48

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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.