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Finding the Fourth Proportional to 472,987.08, 709,058.65 and 173,397.69

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Solution

The fourth proportional to 472,987.08, 709,058.65 and 173,397.69 is: 259,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,987.08 : 709,058.65 = 173,397.69 : x
  2. Step 2: Convert to fraction form
    472,987.08/709,058.65 = 173,397.69/x
  3. Step 3: Cross multiply
    472,987.08x = 709,058.65 × 173,397.69
  4. Step 4: Simplify right side
    472,987.08x = 122,949,131,984.52
  5. Step 5: Solve for x
    x = 122,949,131,984.52/472,987.08
  6. Step 6: Final answer
    x = 259,941.84

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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.