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Finding the Fourth Proportional to 192,040.30, 288,060.45 and 157,048.30

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Solution

The fourth proportional to 192,040.30, 288,060.45 and 157,048.30 is: 235,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,040.30 : 288,060.45 = 157,048.30 : x
  2. Step 2: Convert to fraction form
    192,040.30/288,060.45 = 157,048.30/x
  3. Step 3: Cross multiply
    192,040.30x = 288,060.45 × 157,048.30
  4. Step 4: Simplify right side
    192,040.30x = 45,239,403,969.74
  5. Step 5: Solve for x
    x = 45,239,403,969.74/192,040.30
  6. Step 6: Final answer
    x = 235,572.45

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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.