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Finding the Fourth Proportional to 302,091.60, 453,108.06 and 91,731.36

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Solution

The fourth proportional to 302,091.60, 453,108.06 and 91,731.36 is: 137,588.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,091.60 : 453,108.06 = 91,731.36 : x
  2. Step 2: Convert to fraction form
    302,091.60/453,108.06 = 91,731.36/x
  3. Step 3: Cross multiply
    302,091.60x = 453,108.06 × 91,731.36
  4. Step 4: Simplify right side
    302,091.60x = 41,564,218,570.76
  5. Step 5: Solve for x
    x = 41,564,218,570.76/302,091.60
  6. Step 6: Final answer
    x = 137,588.13

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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.