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Finding the Fourth Proportional to 104,465.52, 144,163.17 and 56,718.90

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Solution

The fourth proportional to 104,465.52, 144,163.17 and 56,718.90 is: 78,272.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,465.52 : 144,163.17 = 56,718.90 : x
  2. Step 2: Convert to fraction form
    104,465.52/144,163.17 = 56,718.90/x
  3. Step 3: Cross multiply
    104,465.52x = 144,163.17 × 56,718.90
  4. Step 4: Simplify right side
    104,465.52x = 8,176,776,422.91
  5. Step 5: Solve for x
    x = 8,176,776,422.91/104,465.52
  6. Step 6: Final answer
    x = 78,272.49

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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.