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Finding the Fourth Proportional to 349,465.44, 523,342.80 and 162,530.40

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Solution

The fourth proportional to 349,465.44, 523,342.80 and 162,530.40 is: 243,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,465.44 : 523,342.80 = 162,530.40 : x
  2. Step 2: Convert to fraction form
    349,465.44/523,342.80 = 162,530.40/x
  3. Step 3: Cross multiply
    349,465.44x = 523,342.80 × 162,530.40
  4. Step 4: Simplify right side
    349,465.44x = 85,059,114,621.12
  5. Step 5: Solve for x
    x = 85,059,114,621.12/349,465.44
  6. Step 6: Final answer
    x = 243,397.79

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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.