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Finding the Fourth Proportional to 157,265.56, 235,900.14 and 87,587.56

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Solution

The fourth proportional to 157,265.56, 235,900.14 and 87,587.56 is: 131,382.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,265.56 : 235,900.14 = 87,587.56 : x
  2. Step 2: Convert to fraction form
    157,265.56/235,900.14 = 87,587.56/x
  3. Step 3: Cross multiply
    157,265.56x = 235,900.14 × 87,587.56
  4. Step 4: Simplify right side
    157,265.56x = 20,661,917,666.26
  5. Step 5: Solve for x
    x = 20,661,917,666.26/157,265.56
  6. Step 6: Final answer
    x = 131,382.34

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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.