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Finding the Fourth Proportional to 192,688.44, 265,902.06 and 105,472.92

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Solution

The fourth proportional to 192,688.44, 265,902.06 and 105,472.92 is: 145,548.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,688.44 : 265,902.06 = 105,472.92 : x
  2. Step 2: Convert to fraction form
    192,688.44/265,902.06 = 105,472.92/x
  3. Step 3: Cross multiply
    192,688.44x = 265,902.06 × 105,472.92
  4. Step 4: Simplify right side
    192,688.44x = 28,045,466,702.22
  5. Step 5: Solve for x
    x = 28,045,466,702.22/192,688.44
  6. Step 6: Final answer
    x = 145,548.26

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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.