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Finding the Fourth Proportional to 91,775.93, 126,652.74 and 51,492.61

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Solution

The fourth proportional to 91,775.93, 126,652.74 and 51,492.61 is: 71,060.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,775.93 : 126,652.74 = 51,492.61 : x
  2. Step 2: Convert to fraction form
    91,775.93/126,652.74 = 51,492.61/x
  3. Step 3: Cross multiply
    91,775.93x = 126,652.74 × 51,492.61
  4. Step 4: Simplify right side
    91,775.93x = 6,521,679,829.62
  5. Step 5: Solve for x
    x = 6,521,679,829.62/91,775.93
  6. Step 6: Final answer
    x = 71,060.89

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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.