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Finding the Fourth Proportional to 192,490.80, 265,632.88 and 107,615.76

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Solution

The fourth proportional to 192,490.80, 265,632.88 and 107,615.76 is: 148,507.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,490.80 : 265,632.88 = 107,615.76 : x
  2. Step 2: Convert to fraction form
    192,490.80/265,632.88 = 107,615.76/x
  3. Step 3: Cross multiply
    192,490.80x = 265,632.88 × 107,615.76
  4. Step 4: Simplify right side
    192,490.80x = 28,586,284,262.19
  5. Step 5: Solve for x
    x = 28,586,284,262.19/192,490.80
  6. Step 6: Final answer
    x = 148,507.28

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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.