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Finding the Fourth Proportional to 183,978.50, 253,890.58 and 104,490.50

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Solution

The fourth proportional to 183,978.50, 253,890.58 and 104,490.50 is: 144,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,978.50 : 253,890.58 = 104,490.50 : x
  2. Step 2: Convert to fraction form
    183,978.50/253,890.58 = 104,490.50/x
  3. Step 3: Cross multiply
    183,978.50x = 253,890.58 × 104,490.50
  4. Step 4: Simplify right side
    183,978.50x = 26,529,153,649.49
  5. Step 5: Solve for x
    x = 26,529,153,649.49/183,978.50
  6. Step 6: Final answer
    x = 144,197.03

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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.