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Finding the Fourth Proportional to 79,263.13, 118,860.13 and 29,980.57

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Solution

The fourth proportional to 79,263.13, 118,860.13 and 29,980.57 is: 44,957.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263.13 : 118,860.13 = 29,980.57 : x
  2. Step 2: Convert to fraction form
    79,263.13/118,860.13 = 29,980.57/x
  3. Step 3: Cross multiply
    79,263.13x = 118,860.13 × 29,980.57
  4. Step 4: Simplify right side
    79,263.13x = 3,563,493,703.47
  5. Step 5: Solve for x
    x = 3,563,493,703.47/79,263.13
  6. Step 6: Final answer
    x = 44,957.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.