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Finding the Fourth Proportional to 301,720.63, 452,580.94 and 77,081.56

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Solution

The fourth proportional to 301,720.63, 452,580.94 and 77,081.56 is: 115,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,720.63 : 452,580.94 = 77,081.56 : x
  2. Step 2: Convert to fraction form
    301,720.63/452,580.94 = 77,081.56/x
  3. Step 3: Cross multiply
    301,720.63x = 452,580.94 × 77,081.56
  4. Step 4: Simplify right side
    301,720.63x = 34,885,644,881.47
  5. Step 5: Solve for x
    x = 34,885,644,881.47/301,720.63
  6. Step 6: Final answer
    x = 115,622.34

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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.