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Finding the Fourth Proportional to 123,866.48, 185,799.69 and 35,120.75

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Solution

The fourth proportional to 123,866.48, 185,799.69 and 35,120.75 is: 52,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,866.48 : 185,799.69 = 35,120.75 : x
  2. Step 2: Convert to fraction form
    123,866.48/185,799.69 = 35,120.75/x
  3. Step 3: Cross multiply
    123,866.48x = 185,799.69 × 35,120.75
  4. Step 4: Simplify right side
    123,866.48x = 6,525,423,533.57
  5. Step 5: Solve for x
    x = 6,525,423,533.57/123,866.48
  6. Step 6: Final answer
    x = 52,681.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.