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Finding the Fourth Proportional to 104,629, 144,385.38 and 56,881.24

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Solution

The fourth proportional to 104,629, 144,385.38 and 56,881.24 is: 78,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,629 : 144,385.38 = 56,881.24 : x
  2. Step 2: Convert to fraction form
    104,629/144,385.38 = 56,881.24/x
  3. Step 3: Cross multiply
    104,629x = 144,385.38 × 56,881.24
  4. Step 4: Simplify right side
    104,629x = 8,212,819,452.27
  5. Step 5: Solve for x
    x = 8,212,819,452.27/104,629
  6. Step 6: Final answer
    x = 78,494.68

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1.5x scale

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.