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Finding the Fourth Proportional to 302,070.66, 453,076.74 and 91,710.42

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Solution

The fourth proportional to 302,070.66, 453,076.74 and 91,710.42 is: 137,556.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,070.66 : 453,076.74 = 91,710.42 : x
  2. Step 2: Convert to fraction form
    302,070.66/453,076.74 = 91,710.42/x
  3. Step 3: Cross multiply
    302,070.66x = 453,076.74 × 91,710.42
  4. Step 4: Simplify right side
    302,070.66x = 41,551,858,117.63
  5. Step 5: Solve for x
    x = 41,551,858,117.63/302,070.66
  6. Step 6: Final answer
    x = 137,556.75

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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.