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Finding the Fourth Proportional to 183,900.19, 253,775.19 and 103,331.11

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Solution

The fourth proportional to 183,900.19, 253,775.19 and 103,331.11 is: 142,592.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,900.19 : 253,775.19 = 103,331.11 : x
  2. Step 2: Convert to fraction form
    183,900.19/253,775.19 = 103,331.11/x
  3. Step 3: Cross multiply
    183,900.19x = 253,775.19 × 103,331.11
  4. Step 4: Simplify right side
    183,900.19x = 26,222,872,073.16
  5. Step 5: Solve for x
    x = 26,222,872,073.16/183,900.19
  6. Step 6: Final answer
    x = 142,592.96

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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.