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Finding the Fourth Proportional to 238,483.20, 357,723.32 and 60,989.90

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Solution

The fourth proportional to 238,483.20, 357,723.32 and 60,989.90 is: 91,484.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,483.20 : 357,723.32 = 60,989.90 : x
  2. Step 2: Convert to fraction form
    238,483.20/357,723.32 = 60,989.90/x
  3. Step 3: Cross multiply
    238,483.20x = 357,723.32 × 60,989.90
  4. Step 4: Simplify right side
    238,483.20x = 21,817,509,514.47
  5. Step 5: Solve for x
    x = 21,817,509,514.47/238,483.20
  6. Step 6: Final answer
    x = 91,484.47

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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.