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Finding the Fourth Proportional to 445,498.47, 668,314.35 and 161,255.52

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Solution

The fourth proportional to 445,498.47, 668,314.35 and 161,255.52 is: 241,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,498.47 : 668,314.35 = 161,255.52 : x
  2. Step 2: Convert to fraction form
    445,498.47/668,314.35 = 161,255.52/x
  3. Step 3: Cross multiply
    445,498.47x = 668,314.35 × 161,255.52
  4. Step 4: Simplify right side
    445,498.47x = 107,769,378,032.71
  5. Step 5: Solve for x
    x = 107,769,378,032.71/445,498.47
  6. Step 6: Final answer
    x = 241,907.40

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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.