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Finding the Fourth Proportional to 65,045.02, 89,750.64 and 36,355.51

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Solution

The fourth proportional to 65,045.02, 89,750.64 and 36,355.51 is: 50,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.02 : 89,750.64 = 36,355.51 : x
  2. Step 2: Convert to fraction form
    65,045.02/89,750.64 = 36,355.51/x
  3. Step 3: Cross multiply
    65,045.02x = 89,750.64 × 36,355.51
  4. Step 4: Simplify right side
    65,045.02x = 3,262,930,290.03
  5. Step 5: Solve for x
    x = 3,262,930,290.03/65,045.02
  6. Step 6: Final answer
    x = 50,164.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.