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Finding the Fourth Proportional to 157,111.60, 235,278.60 and 126,007.60

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Solution

The fourth proportional to 157,111.60, 235,278.60 and 126,007.60 is: 188,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,111.60 : 235,278.60 = 126,007.60 : x
  2. Step 2: Convert to fraction form
    157,111.60/235,278.60 = 126,007.60/x
  3. Step 3: Cross multiply
    157,111.60x = 235,278.60 × 126,007.60
  4. Step 4: Simplify right side
    157,111.60x = 29,646,891,717.36
  5. Step 5: Solve for x
    x = 29,646,891,717.36/157,111.60
  6. Step 6: Final answer
    x = 188,699.57

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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.