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Finding the Fourth Proportional to 104,970.33, 144,860.94 and 57,225.69

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Solution

The fourth proportional to 104,970.33, 144,860.94 and 57,225.69 is: 78,972.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,970.33 : 144,860.94 = 57,225.69 : x
  2. Step 2: Convert to fraction form
    104,970.33/144,860.94 = 57,225.69/x
  3. Step 3: Cross multiply
    104,970.33x = 144,860.94 × 57,225.69
  4. Step 4: Simplify right side
    104,970.33x = 8,289,767,245.55
  5. Step 5: Solve for x
    x = 8,289,767,245.55/104,970.33
  6. Step 6: Final answer
    x = 78,972.48

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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.