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Finding the Fourth Proportional to 91,894.30, 126,808.34 and 51,607.02

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Solution

The fourth proportional to 91,894.30, 126,808.34 and 51,607.02 is: 71,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,894.30 : 126,808.34 = 51,607.02 : x
  2. Step 2: Convert to fraction form
    91,894.30/126,808.34 = 51,607.02/x
  3. Step 3: Cross multiply
    91,894.30x = 126,808.34 × 51,607.02
  4. Step 4: Simplify right side
    91,894.30x = 6,544,200,756.04
  5. Step 5: Solve for x
    x = 6,544,200,756.04/91,894.30
  6. Step 6: Final answer
    x = 71,214.44

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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.