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Finding the Fourth Proportional to 122,647.86, 183,971.34 and 33,901.20

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Solution

The fourth proportional to 122,647.86, 183,971.34 and 33,901.20 is: 50,851.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,647.86 : 183,971.34 = 33,901.20 : x
  2. Step 2: Convert to fraction form
    122,647.86/183,971.34 = 33,901.20/x
  3. Step 3: Cross multiply
    122,647.86x = 183,971.34 × 33,901.20
  4. Step 4: Simplify right side
    122,647.86x = 6,236,849,191.61
  5. Step 5: Solve for x
    x = 6,236,849,191.61/122,647.86
  6. Step 6: Final answer
    x = 50,851.68

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1.5x scale

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.