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Finding the Fourth Proportional to 315,250.03, 435,109.80 and 192,763.36

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Solution

The fourth proportional to 315,250.03, 435,109.80 and 192,763.36 is: 266,053.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,250.03 : 435,109.80 = 192,763.36 : x
  2. Step 2: Convert to fraction form
    315,250.03/435,109.80 = 192,763.36/x
  3. Step 3: Cross multiply
    315,250.03x = 435,109.80 × 192,763.36
  4. Step 4: Simplify right side
    315,250.03x = 83,873,227,016.93
  5. Step 5: Solve for x
    x = 83,873,227,016.93/315,250.03
  6. Step 6: Final answer
    x = 266,053.03

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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.