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Finding the Fourth Proportional to 163,554.80, 245,332.20 and 135,906.80

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Solution

The fourth proportional to 163,554.80, 245,332.20 and 135,906.80 is: 203,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,554.80 : 245,332.20 = 135,906.80 : x
  2. Step 2: Convert to fraction form
    163,554.80/245,332.20 = 135,906.80/x
  3. Step 3: Cross multiply
    163,554.80x = 245,332.20 × 135,906.80
  4. Step 4: Simplify right side
    163,554.80x = 33,342,314,238.96
  5. Step 5: Solve for x
    x = 33,342,314,238.96/163,554.80
  6. Step 6: Final answer
    x = 203,860.20

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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.