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Finding the Fourth Proportional to 69,305.72, 103,457.18 and 60,898.14

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Solution

The fourth proportional to 69,305.72, 103,457.18 and 60,898.14 is: 90,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,305.72 : 103,457.18 = 60,898.14 : x
  2. Step 2: Convert to fraction form
    69,305.72/103,457.18 = 60,898.14/x
  3. Step 3: Cross multiply
    69,305.72x = 103,457.18 × 60,898.14
  4. Step 4: Simplify right side
    69,305.72x = 6,300,349,983.89
  5. Step 5: Solve for x
    x = 6,300,349,983.89/69,305.72
  6. Step 6: Final answer
    x = 90,906.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.