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Finding the Fourth Proportional to 183,864.96, 275,907.60 and 78,684.03

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Solution

The fourth proportional to 183,864.96, 275,907.60 and 78,684.03 is: 118,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,864.96 : 275,907.60 = 78,684.03 : x
  2. Step 2: Convert to fraction form
    183,864.96/275,907.60 = 78,684.03/x
  3. Step 3: Cross multiply
    183,864.96x = 275,907.60 × 78,684.03
  4. Step 4: Simplify right side
    183,864.96x = 21,709,521,875.63
  5. Step 5: Solve for x
    x = 21,709,521,875.63/183,864.96
  6. Step 6: Final answer
    x = 118,073.19

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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.