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Finding the Fourth Proportional to 188,603.43, 282,865.38 and 55,447.53

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Solution

The fourth proportional to 188,603.43, 282,865.38 and 55,447.53 is: 83,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,603.43 : 282,865.38 = 55,447.53 : x
  2. Step 2: Convert to fraction form
    188,603.43/282,865.38 = 55,447.53/x
  3. Step 3: Cross multiply
    188,603.43x = 282,865.38 × 55,447.53
  4. Step 4: Simplify right side
    188,603.43x = 15,684,186,643.51
  5. Step 5: Solve for x
    x = 15,684,186,643.51/188,603.43
  6. Step 6: Final answer
    x = 83,159.60

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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.