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Finding the Fourth Proportional to 157,620.70, 236,428.75 and 73,333.72

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Solution

The fourth proportional to 157,620.70, 236,428.75 and 73,333.72 is: 109,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,620.70 : 236,428.75 = 73,333.72 : x
  2. Step 2: Convert to fraction form
    157,620.70/236,428.75 = 73,333.72/x
  3. Step 3: Cross multiply
    157,620.70x = 236,428.75 × 73,333.72
  4. Step 4: Simplify right side
    157,620.70x = 17,338,199,752.45
  5. Step 5: Solve for x
    x = 17,338,199,752.45/157,620.70
  6. Step 6: Final answer
    x = 109,999.51

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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.