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Finding the Fourth Proportional to 65,899.36, 99,264.04 and 60,013.63

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Solution

The fourth proportional to 65,899.36, 99,264.04 and 60,013.63 is: 90,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,899.36 : 99,264.04 = 60,013.63 : x
  2. Step 2: Convert to fraction form
    65,899.36/99,264.04 = 60,013.63/x
  3. Step 3: Cross multiply
    65,899.36x = 99,264.04 × 60,013.63
  4. Step 4: Simplify right side
    65,899.36x = 5,957,195,368.87
  5. Step 5: Solve for x
    x = 5,957,195,368.87/65,899.36
  6. Step 6: Final answer
    x = 90,398.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.