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Finding the Fourth Proportional to 155,496.71, 214,651.67 and 104,539.01

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Solution

The fourth proportional to 155,496.71, 214,651.67 and 104,539.01 is: 144,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,496.71 : 214,651.67 = 104,539.01 : x
  2. Step 2: Convert to fraction form
    155,496.71/214,651.67 = 104,539.01/x
  3. Step 3: Cross multiply
    155,496.71x = 214,651.67 × 104,539.01
  4. Step 4: Simplify right side
    155,496.71x = 22,439,471,480.69
  5. Step 5: Solve for x
    x = 22,439,471,480.69/155,496.71
  6. Step 6: Final answer
    x = 144,308.33

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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.