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Finding the Fourth Proportional to 334,387.20, 501,580.80 and 97,720.32

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Solution

The fourth proportional to 334,387.20, 501,580.80 and 97,720.32 is: 146,580.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,387.20 : 501,580.80 = 97,720.32 : x
  2. Step 2: Convert to fraction form
    334,387.20/501,580.80 = 97,720.32/x
  3. Step 3: Cross multiply
    334,387.20x = 501,580.80 × 97,720.32
  4. Step 4: Simplify right side
    334,387.20x = 49,014,636,281.86
  5. Step 5: Solve for x
    x = 49,014,636,281.86/334,387.20
  6. Step 6: Final answer
    x = 146,580.48

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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.