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Finding the Fourth Proportional to 161,717.40, 242,576.10 and 91,733.40

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Solution

The fourth proportional to 161,717.40, 242,576.10 and 91,733.40 is: 137,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,717.40 : 242,576.10 = 91,733.40 : x
  2. Step 2: Convert to fraction form
    161,717.40/242,576.10 = 91,733.40/x
  3. Step 3: Cross multiply
    161,717.40x = 242,576.10 × 91,733.40
  4. Step 4: Simplify right side
    161,717.40x = 22,252,330,411.74
  5. Step 5: Solve for x
    x = 22,252,330,411.74/161,717.40
  6. Step 6: Final answer
    x = 137,600.10

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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.