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Finding the Fourth Proportional to 301,717.89, 452,576.81 and 77,078.81

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Solution

The fourth proportional to 301,717.89, 452,576.81 and 77,078.81 is: 115,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,717.89 : 452,576.81 = 77,078.81 : x
  2. Step 2: Convert to fraction form
    301,717.89/452,576.81 = 77,078.81/x
  3. Step 3: Cross multiply
    301,717.89x = 452,576.81 × 77,078.81
  4. Step 4: Simplify right side
    301,717.89x = 34,884,079,300.12
  5. Step 5: Solve for x
    x = 34,884,079,300.12/301,717.89
  6. Step 6: Final answer
    x = 115,618.20

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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.