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Finding the Fourth Proportional to 68,389.31, 102,373.76 and 58,300.23

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Solution

The fourth proportional to 68,389.31, 102,373.76 and 58,300.23 is: 87,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,389.31 : 102,373.76 = 58,300.23 : x
  2. Step 2: Convert to fraction form
    68,389.31/102,373.76 = 58,300.23/x
  3. Step 3: Cross multiply
    68,389.31x = 102,373.76 × 58,300.23
  4. Step 4: Simplify right side
    68,389.31x = 5,968,413,955.68
  5. Step 5: Solve for x
    x = 5,968,413,955.68/68,389.31
  6. Step 6: Final answer
    x = 87,271.15

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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.