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Finding the Fourth Proportional to 116,576.60, 174,864.90 and 91,207.40

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Solution

The fourth proportional to 116,576.60, 174,864.90 and 91,207.40 is: 136,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,576.60 : 174,864.90 = 91,207.40 : x
  2. Step 2: Convert to fraction form
    116,576.60/174,864.90 = 91,207.40/x
  3. Step 3: Cross multiply
    116,576.60x = 174,864.90 × 91,207.40
  4. Step 4: Simplify right side
    116,576.60x = 15,948,972,880.26
  5. Step 5: Solve for x
    x = 15,948,972,880.26/116,576.60
  6. Step 6: Final answer
    x = 136,811.10

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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.