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Finding the Fourth Proportional to 58,776.56, 88,072.68 and 40,989.68

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Solution

The fourth proportional to 58,776.56, 88,072.68 and 40,989.68 is: 61,420.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,776.56 : 88,072.68 = 40,989.68 : x
  2. Step 2: Convert to fraction form
    58,776.56/88,072.68 = 40,989.68/x
  3. Step 3: Cross multiply
    58,776.56x = 88,072.68 × 40,989.68
  4. Step 4: Simplify right side
    58,776.56x = 3,610,070,969.94
  5. Step 5: Solve for x
    x = 3,610,070,969.94/58,776.56
  6. Step 6: Final answer
    x = 61,420.25

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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.