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Finding the Fourth Proportional to 157,208.39, 235,813.28 and 38,879.39

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Solution

The fourth proportional to 157,208.39, 235,813.28 and 38,879.39 is: 58,319.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,208.39 : 235,813.28 = 38,879.39 : x
  2. Step 2: Convert to fraction form
    157,208.39/235,813.28 = 38,879.39/x
  3. Step 3: Cross multiply
    157,208.39x = 235,813.28 × 38,879.39
  4. Step 4: Simplify right side
    157,208.39x = 9,168,276,875.44
  5. Step 5: Solve for x
    x = 9,168,276,875.44/157,208.39
  6. Step 6: Final answer
    x = 58,319.26

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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.