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Finding the Fourth Proportional to 104,404.70, 144,078.59 and 56,658.05

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Solution

The fourth proportional to 104,404.70, 144,078.59 and 56,658.05 is: 78,188.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,404.70 : 144,078.59 = 56,658.05 : x
  2. Step 2: Convert to fraction form
    104,404.70/144,078.59 = 56,658.05/x
  3. Step 3: Cross multiply
    104,404.70x = 144,078.59 × 56,658.05
  4. Step 4: Simplify right side
    104,404.70x = 8,163,212,033.06
  5. Step 5: Solve for x
    x = 8,163,212,033.06/104,404.70
  6. Step 6: Final answer
    x = 78,188.16

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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.