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Finding the Fourth Proportional to 91,496.66, 137,455.26 and 64,908.66

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Solution

The fourth proportional to 91,496.66, 137,455.26 and 64,908.66 is: 97,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,496.66 : 137,455.26 = 64,908.66 : x
  2. Step 2: Convert to fraction form
    91,496.66/137,455.26 = 64,908.66/x
  3. Step 3: Cross multiply
    91,496.66x = 137,455.26 × 64,908.66
  4. Step 4: Simplify right side
    91,496.66x = 8,922,036,736.55
  5. Step 5: Solve for x
    x = 8,922,036,736.55/91,496.66
  6. Step 6: Final answer
    x = 97,512.16

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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.