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Finding the Fourth Proportional to 89,945.94, 134,989.40 and 62,751.42

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Solution

The fourth proportional to 89,945.94, 134,989.40 and 62,751.42 is: 94,176.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,945.94 : 134,989.40 = 62,751.42 : x
  2. Step 2: Convert to fraction form
    89,945.94/134,989.40 = 62,751.42/x
  3. Step 3: Cross multiply
    89,945.94x = 134,989.40 × 62,751.42
  4. Step 4: Simplify right side
    89,945.94x = 8,470,776,534.95
  5. Step 5: Solve for x
    x = 8,470,776,534.95/89,945.94
  6. Step 6: Final answer
    x = 94,176.31

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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.