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Finding the Fourth Proportional to 228,062.58, 314,712.78 and 126,081.93

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Solution

The fourth proportional to 228,062.58, 314,712.78 and 126,081.93 is: 173,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,062.58 : 314,712.78 = 126,081.93 : x
  2. Step 2: Convert to fraction form
    228,062.58/314,712.78 = 126,081.93/x
  3. Step 3: Cross multiply
    228,062.58x = 314,712.78 × 126,081.93
  4. Step 4: Simplify right side
    228,062.58x = 39,679,594,698.07
  5. Step 5: Solve for x
    x = 39,679,594,698.07/228,062.58
  6. Step 6: Final answer
    x = 173,985.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.