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Finding the Fourth Proportional to 122,885.61, 184,400.03 and 51,803.88

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Solution

The fourth proportional to 122,885.61, 184,400.03 and 51,803.88 is: 77,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,885.61 : 184,400.03 = 51,803.88 : x
  2. Step 2: Convert to fraction form
    122,885.61/184,400.03 = 51,803.88/x
  3. Step 3: Cross multiply
    122,885.61x = 184,400.03 × 51,803.88
  4. Step 4: Simplify right side
    122,885.61x = 9,552,637,026.12
  5. Step 5: Solve for x
    x = 9,552,637,026.12/122,885.61
  6. Step 6: Final answer
    x = 77,736.01

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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.