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Finding the Fourth Proportional to 104,367.36, 144,026.64 and 61,960.80

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Solution

The fourth proportional to 104,367.36, 144,026.64 and 61,960.80 is: 85,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,367.36 : 144,026.64 = 61,960.80 : x
  2. Step 2: Convert to fraction form
    104,367.36/144,026.64 = 61,960.80/x
  3. Step 3: Cross multiply
    104,367.36x = 144,026.64 × 61,960.80
  4. Step 4: Simplify right side
    104,367.36x = 8,924,005,835.71
  5. Step 5: Solve for x
    x = 8,924,005,835.71/104,367.36
  6. Step 6: Final answer
    x = 85,505.72

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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.