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Finding the Fourth Proportional to 243,362.60, 365,043.90 and 234,031.40

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Solution

The fourth proportional to 243,362.60, 365,043.90 and 234,031.40 is: 351,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,362.60 : 365,043.90 = 234,031.40 : x
  2. Step 2: Convert to fraction form
    243,362.60/365,043.90 = 234,031.40/x
  3. Step 3: Cross multiply
    243,362.60x = 365,043.90 × 234,031.40
  4. Step 4: Simplify right side
    243,362.60x = 85,431,734,978.46
  5. Step 5: Solve for x
    x = 85,431,734,978.46/243,362.60
  6. Step 6: Final answer
    x = 351,047.10

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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.