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Finding the Fourth Proportional to 213,910.80, 295,200.40 and 117,113.04

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Solution

The fourth proportional to 213,910.80, 295,200.40 and 117,113.04 is: 161,617.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,910.80 : 295,200.40 = 117,113.04 : x
  2. Step 2: Convert to fraction form
    213,910.80/295,200.40 = 117,113.04/x
  3. Step 3: Cross multiply
    213,910.80x = 295,200.40 × 117,113.04
  4. Step 4: Simplify right side
    213,910.80x = 34,571,816,253.22
  5. Step 5: Solve for x
    x = 34,571,816,253.22/213,910.80
  6. Step 6: Final answer
    x = 161,617.91

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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.