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Finding the Fourth Proportional to 163,091.80, 244,637.70 and 142,355.80

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Solution

The fourth proportional to 163,091.80, 244,637.70 and 142,355.80 is: 213,533.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,091.80 : 244,637.70 = 142,355.80 : x
  2. Step 2: Convert to fraction form
    163,091.80/244,637.70 = 142,355.80/x
  3. Step 3: Cross multiply
    163,091.80x = 244,637.70 × 142,355.80
  4. Step 4: Simplify right side
    163,091.80x = 34,825,595,493.66
  5. Step 5: Solve for x
    x = 34,825,595,493.66/163,091.80
  6. Step 6: Final answer
    x = 213,533.70

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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.