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Finding the Fourth Proportional to 552,805.81, 829,213.35 and 153,477.72

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Solution

The fourth proportional to 552,805.81, 829,213.35 and 153,477.72 is: 230,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,805.81 : 829,213.35 = 153,477.72 : x
  2. Step 2: Convert to fraction form
    552,805.81/829,213.35 = 153,477.72/x
  3. Step 3: Cross multiply
    552,805.81x = 829,213.35 × 153,477.72
  4. Step 4: Simplify right side
    552,805.81x = 127,265,774,351.56
  5. Step 5: Solve for x
    x = 127,265,774,351.56/552,805.81
  6. Step 6: Final answer
    x = 230,217.87

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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.