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Finding the Fourth Proportional to 108,647.65, 163,018.29 and 58,762.87

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Solution

The fourth proportional to 108,647.65, 163,018.29 and 58,762.87 is: 88,169.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,647.65 : 163,018.29 = 58,762.87 : x
  2. Step 2: Convert to fraction form
    108,647.65/163,018.29 = 58,762.87/x
  3. Step 3: Cross multiply
    108,647.65x = 163,018.29 × 58,762.87
  4. Step 4: Simplify right side
    108,647.65x = 9,579,422,065.17
  5. Step 5: Solve for x
    x = 9,579,422,065.17/108,647.65
  6. Step 6: Final answer
    x = 88,169.62

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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.