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Finding the Fourth Proportional to 109,329.66, 150,875.46 and 61,583.94

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Solution

The fourth proportional to 109,329.66, 150,875.46 and 61,583.94 is: 84,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,329.66 : 150,875.46 = 61,583.94 : x
  2. Step 2: Convert to fraction form
    109,329.66/150,875.46 = 61,583.94/x
  3. Step 3: Cross multiply
    109,329.66x = 150,875.46 × 61,583.94
  4. Step 4: Simplify right side
    109,329.66x = 9,291,505,276.11
  5. Step 5: Solve for x
    x = 9,291,505,276.11/109,329.66
  6. Step 6: Final answer
    x = 84,986.14

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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.