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Finding the Fourth Proportional to 227,407.86, 313,830.41 and 124,047.72

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Solution

The fourth proportional to 227,407.86, 313,830.41 and 124,047.72 is: 171,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,407.86 : 313,830.41 = 124,047.72 : x
  2. Step 2: Convert to fraction form
    227,407.86/313,830.41 = 124,047.72/x
  3. Step 3: Cross multiply
    227,407.86x = 313,830.41 × 124,047.72
  4. Step 4: Simplify right side
    227,407.86x = 38,929,946,206.93
  5. Step 5: Solve for x
    x = 38,929,946,206.93/227,407.86
  6. Step 6: Final answer
    x = 171,189.98

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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.