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Finding the Fourth Proportional to 104,468.70, 144,166.35 and 56,721.66

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Solution

The fourth proportional to 104,468.70, 144,166.35 and 56,721.66 is: 78,275.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,468.70 : 144,166.35 = 56,721.66 : x
  2. Step 2: Convert to fraction form
    104,468.70/144,166.35 = 56,721.66/x
  3. Step 3: Cross multiply
    104,468.70x = 144,166.35 × 56,721.66
  4. Step 4: Simplify right side
    104,468.70x = 8,177,354,688.14
  5. Step 5: Solve for x
    x = 8,177,354,688.14/104,468.70
  6. Step 6: Final answer
    x = 78,275.64

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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.