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Finding the Fourth Proportional to 69,681.79, 96,162.64 and 39,466.66

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Solution

The fourth proportional to 69,681.79, 96,162.64 and 39,466.66 is: 54,465.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,681.79 : 96,162.64 = 39,466.66 : x
  2. Step 2: Convert to fraction form
    69,681.79/96,162.64 = 39,466.66/x
  3. Step 3: Cross multiply
    69,681.79x = 96,162.64 × 39,466.66
  4. Step 4: Simplify right side
    69,681.79x = 3,795,218,280.81
  5. Step 5: Solve for x
    x = 3,795,218,280.81/69,681.79
  6. Step 6: Final answer
    x = 54,465.00

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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.