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Finding the Fourth Proportional to 302,008.63, 453,015.68 and 91,646.57

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Solution

The fourth proportional to 302,008.63, 453,015.68 and 91,646.57 is: 137,470.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,008.63 : 453,015.68 = 91,646.57 : x
  2. Step 2: Convert to fraction form
    302,008.63/453,015.68 = 91,646.57/x
  3. Step 3: Cross multiply
    302,008.63x = 453,015.68 × 91,646.57
  4. Step 4: Simplify right side
    302,008.63x = 41,517,333,228.22
  5. Step 5: Solve for x
    x = 41,517,333,228.22/302,008.63
  6. Step 6: Final answer
    x = 137,470.68

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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.