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Finding the Fourth Proportional to 325,270.40, 487,905.60 and 114,929.60

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Solution

The fourth proportional to 325,270.40, 487,905.60 and 114,929.60 is: 172,394.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,270.40 : 487,905.60 = 114,929.60 : x
  2. Step 2: Convert to fraction form
    325,270.40/487,905.60 = 114,929.60/x
  3. Step 3: Cross multiply
    325,270.40x = 487,905.60 × 114,929.60
  4. Step 4: Simplify right side
    325,270.40x = 56,074,795,445.76
  5. Step 5: Solve for x
    x = 56,074,795,445.76/325,270.40
  6. Step 6: Final answer
    x = 172,394.40

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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.