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Finding the Fourth Proportional to 358,975.72, 538,462.14 and 134,353

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Solution

The fourth proportional to 358,975.72, 538,462.14 and 134,353 is: 201,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,975.72 : 538,462.14 = 134,353 : x
  2. Step 2: Convert to fraction form
    358,975.72/538,462.14 = 134,353/x
  3. Step 3: Cross multiply
    358,975.72x = 538,462.14 × 134,353
  4. Step 4: Simplify right side
    358,975.72x = 72,344,003,895.42
  5. Step 5: Solve for x
    x = 72,344,003,895.42/358,975.72
  6. Step 6: Final answer
    x = 201,528.96

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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.