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Finding the Fourth Proportional to 69,303.32, 103,453.65 and 60,895.79

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Solution

The fourth proportional to 69,303.32, 103,453.65 and 60,895.79 is: 90,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.32 : 103,453.65 = 60,895.79 : x
  2. Step 2: Convert to fraction form
    69,303.32/103,453.65 = 60,895.79/x
  3. Step 3: Cross multiply
    69,303.32x = 103,453.65 × 60,895.79
  4. Step 4: Simplify right side
    69,303.32x = 6,299,891,745.13
  5. Step 5: Solve for x
    x = 6,299,891,745.13/69,303.32
  6. Step 6: Final answer
    x = 90,903.17

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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.