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Finding the Fourth Proportional to 104,419.34, 144,098.80 and 56,672.71

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Solution

The fourth proportional to 104,419.34, 144,098.80 and 56,672.71 is: 78,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.34 : 144,098.80 = 56,672.71 : x
  2. Step 2: Convert to fraction form
    104,419.34/144,098.80 = 56,672.71/x
  3. Step 3: Cross multiply
    104,419.34x = 144,098.80 × 56,672.71
  4. Step 4: Simplify right side
    104,419.34x = 8,166,469,542.19
  5. Step 5: Solve for x
    x = 8,166,469,542.19/104,419.34
  6. Step 6: Final answer
    x = 78,208.40

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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.