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Finding the Fourth Proportional to 353,071.50, 529,607.25 and 103,753.50

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Solution

The fourth proportional to 353,071.50, 529,607.25 and 103,753.50 is: 155,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,071.50 : 529,607.25 = 103,753.50 : x
  2. Step 2: Convert to fraction form
    353,071.50/529,607.25 = 103,753.50/x
  3. Step 3: Cross multiply
    353,071.50x = 529,607.25 × 103,753.50
  4. Step 4: Simplify right side
    353,071.50x = 54,948,605,812.88
  5. Step 5: Solve for x
    x = 54,948,605,812.88/353,071.50
  6. Step 6: Final answer
    x = 155,630.25

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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.