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Finding the Fourth Proportional to 61,135.88, 91,585.74 and 45,097.16

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Solution

The fourth proportional to 61,135.88, 91,585.74 and 45,097.16 is: 67,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.88 : 91,585.74 = 45,097.16 : x
  2. Step 2: Convert to fraction form
    61,135.88/91,585.74 = 45,097.16/x
  3. Step 3: Cross multiply
    61,135.88x = 91,585.74 × 45,097.16
  4. Step 4: Simplify right side
    61,135.88x = 4,130,256,770.50
  5. Step 5: Solve for x
    x = 4,130,256,770.50/61,135.88
  6. Step 6: Final answer
    x = 67,558.64

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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.