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Finding the Fourth Proportional to 261,528.44, 392,444.01 and 109,711.92

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Solution

The fourth proportional to 261,528.44, 392,444.01 and 109,711.92 is: 164,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,528.44 : 392,444.01 = 109,711.92 : x
  2. Step 2: Convert to fraction form
    261,528.44/392,444.01 = 109,711.92/x
  3. Step 3: Cross multiply
    261,528.44x = 392,444.01 × 109,711.92
  4. Step 4: Simplify right side
    261,528.44x = 43,055,785,829.60
  5. Step 5: Solve for x
    x = 43,055,785,829.60/261,528.44
  6. Step 6: Final answer
    x = 164,631.37

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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.