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Finding the Fourth Proportional to 104,250.72, 143,862.12 and 56,503.02

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Solution

The fourth proportional to 104,250.72, 143,862.12 and 56,503.02 is: 77,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,250.72 : 143,862.12 = 56,503.02 : x
  2. Step 2: Convert to fraction form
    104,250.72/143,862.12 = 56,503.02/x
  3. Step 3: Cross multiply
    104,250.72x = 143,862.12 × 56,503.02
  4. Step 4: Simplify right side
    104,250.72x = 8,128,644,243.60
  5. Step 5: Solve for x
    x = 8,128,644,243.60/104,250.72
  6. Step 6: Final answer
    x = 77,972.07

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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.