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Finding the Fourth Proportional to 74,807.81, 103,114.17 and 50,599.94

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Solution

The fourth proportional to 74,807.81, 103,114.17 and 50,599.94 is: 69,746.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,807.81 : 103,114.17 = 50,599.94 : x
  2. Step 2: Convert to fraction form
    74,807.81/103,114.17 = 50,599.94/x
  3. Step 3: Cross multiply
    74,807.81x = 103,114.17 × 50,599.94
  4. Step 4: Simplify right side
    74,807.81x = 5,217,570,941.65
  5. Step 5: Solve for x
    x = 5,217,570,941.65/74,807.81
  6. Step 6: Final answer
    x = 69,746.34

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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.