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Finding the Fourth Proportional to 104,419.47, 144,098.95 and 56,672.81

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Solution

The fourth proportional to 104,419.47, 144,098.95 and 56,672.81 is: 78,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.47 : 144,098.95 = 56,672.81 : x
  2. Step 2: Convert to fraction form
    104,419.47/144,098.95 = 56,672.81/x
  3. Step 3: Cross multiply
    104,419.47x = 144,098.95 × 56,672.81
  4. Step 4: Simplify right side
    104,419.47x = 8,166,491,552.37
  5. Step 5: Solve for x
    x = 8,166,491,552.37/104,419.47
  6. Step 6: Final answer
    x = 78,208.51

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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.