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Finding the Fourth Proportional to 65,300.93, 90,099.54 and 41,418.89

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Solution

The fourth proportional to 65,300.93, 90,099.54 and 41,418.89 is: 57,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,300.93 : 90,099.54 = 41,418.89 : x
  2. Step 2: Convert to fraction form
    65,300.93/90,099.54 = 41,418.89/x
  3. Step 3: Cross multiply
    65,300.93x = 90,099.54 × 41,418.89
  4. Step 4: Simplify right side
    65,300.93x = 3,731,822,485.81
  5. Step 5: Solve for x
    x = 3,731,822,485.81/65,300.93
  6. Step 6: Final answer
    x = 57,148.08

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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.