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Finding the Fourth Proportional to 302,021.70, 453,032.55 and 91,670.10

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Solution

The fourth proportional to 302,021.70, 453,032.55 and 91,670.10 is: 137,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,021.70 : 453,032.55 = 91,670.10 : x
  2. Step 2: Convert to fraction form
    302,021.70/453,032.55 = 91,670.10/x
  3. Step 3: Cross multiply
    302,021.70x = 453,032.55 × 91,670.10
  4. Step 4: Simplify right side
    302,021.70x = 41,529,539,161.76
  5. Step 5: Solve for x
    x = 41,529,539,161.76/302,021.70
  6. Step 6: Final answer
    x = 137,505.15

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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.