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Finding the Fourth Proportional to 347,181.60, 520,822.80 and 147,501.60

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Solution

The fourth proportional to 347,181.60, 520,822.80 and 147,501.60 is: 221,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,181.60 : 520,822.80 = 147,501.60 : x
  2. Step 2: Convert to fraction form
    347,181.60/520,822.80 = 147,501.60/x
  3. Step 3: Cross multiply
    347,181.60x = 520,822.80 × 147,501.60
  4. Step 4: Simplify right side
    347,181.60x = 76,822,196,316.48
  5. Step 5: Solve for x
    x = 76,822,196,316.48/347,181.60
  6. Step 6: Final answer
    x = 221,273.81

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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.