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Finding the Fourth Proportional to 89,305.90, 123,243.54 and 49,023.34

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Solution

The fourth proportional to 89,305.90, 123,243.54 and 49,023.34 is: 67,652.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,305.90 : 123,243.54 = 49,023.34 : x
  2. Step 2: Convert to fraction form
    89,305.90/123,243.54 = 49,023.34/x
  3. Step 3: Cross multiply
    89,305.90x = 123,243.54 × 49,023.34
  4. Step 4: Simplify right side
    89,305.90x = 6,041,809,656.11
  5. Step 5: Solve for x
    x = 6,041,809,656.11/89,305.90
  6. Step 6: Final answer
    x = 67,652.98

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1.5x scale

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.