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Finding the Fourth Proportional to 69,807.23, 103,921.29 and 69,392.04

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Solution

The fourth proportional to 69,807.23, 103,921.29 and 69,392.04 is: 103,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,807.23 : 103,921.29 = 69,392.04 : x
  2. Step 2: Convert to fraction form
    69,807.23/103,921.29 = 69,392.04/x
  3. Step 3: Cross multiply
    69,807.23x = 103,921.29 × 69,392.04
  4. Step 4: Simplify right side
    69,807.23x = 7,211,310,312.53
  5. Step 5: Solve for x
    x = 7,211,310,312.53/69,807.23
  6. Step 6: Final answer
    x = 103,303.21

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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.