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Finding the Fourth Proportional to 207,167.40, 310,758.36 and 57,395.64

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Solution

The fourth proportional to 207,167.40, 310,758.36 and 57,395.64 is: 86,095.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,167.40 : 310,758.36 = 57,395.64 : x
  2. Step 2: Convert to fraction form
    207,167.40/310,758.36 = 57,395.64/x
  3. Step 3: Cross multiply
    207,167.40x = 310,758.36 × 57,395.64
  4. Step 4: Simplify right side
    207,167.40x = 17,836,174,957.55
  5. Step 5: Solve for x
    x = 17,836,174,957.55/207,167.40
  6. Step 6: Final answer
    x = 86,095.47

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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.