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Finding the Fourth Proportional to 302,071.66, 453,078.24 and 91,711.42

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Solution

The fourth proportional to 302,071.66, 453,078.24 and 91,711.42 is: 137,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,071.66 : 453,078.24 = 91,711.42 : x
  2. Step 2: Convert to fraction form
    302,071.66/453,078.24 = 91,711.42/x
  3. Step 3: Cross multiply
    302,071.66x = 453,078.24 × 91,711.42
  4. Step 4: Simplify right side
    302,071.66x = 41,552,448,761.50
  5. Step 5: Solve for x
    x = 41,552,448,761.50/302,071.66
  6. Step 6: Final answer
    x = 137,558.25

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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.