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Finding the Fourth Proportional to 65,157.03, 89,870.33 and 59,796.78

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Solution

The fourth proportional to 65,157.03, 89,870.33 and 59,796.78 is: 82,477.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,157.03 : 89,870.33 = 59,796.78 : x
  2. Step 2: Convert to fraction form
    65,157.03/89,870.33 = 59,796.78/x
  3. Step 3: Cross multiply
    65,157.03x = 89,870.33 × 59,796.78
  4. Step 4: Simplify right side
    65,157.03x = 5,373,956,051.68
  5. Step 5: Solve for x
    x = 5,373,956,051.68/65,157.03
  6. Step 6: Final answer
    x = 82,477.00

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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.