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Finding the Fourth Proportional to 55,588.88, 83,295.88 and 42,969.49

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Solution

The fourth proportional to 55,588.88, 83,295.88 and 42,969.49 is: 64,386.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,588.88 : 83,295.88 = 42,969.49 : x
  2. Step 2: Convert to fraction form
    55,588.88/83,295.88 = 42,969.49/x
  3. Step 3: Cross multiply
    55,588.88x = 83,295.88 × 42,969.49
  4. Step 4: Simplify right side
    55,588.88x = 3,579,181,167.04
  5. Step 5: Solve for x
    x = 3,579,181,167.04/55,588.88
  6. Step 6: Final answer
    x = 64,386.64

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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.