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Finding the Fourth Proportional to 325,058.64, 487,518.66 and 125,312.64

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Solution

The fourth proportional to 325,058.64, 487,518.66 and 125,312.64 is: 187,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,058.64 : 487,518.66 = 125,312.64 : x
  2. Step 2: Convert to fraction form
    325,058.64/487,518.66 = 125,312.64/x
  3. Step 3: Cross multiply
    325,058.64x = 487,518.66 × 125,312.64
  4. Step 4: Simplify right side
    325,058.64x = 61,092,250,333.86
  5. Step 5: Solve for x
    x = 61,092,250,333.86/325,058.64
  6. Step 6: Final answer
    x = 187,942.24

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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.