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Finding the Fourth Proportional to 443,358.72, 665,038.08 and 110,934.72

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Solution

The fourth proportional to 443,358.72, 665,038.08 and 110,934.72 is: 166,402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,358.72 : 665,038.08 = 110,934.72 : x
  2. Step 2: Convert to fraction form
    443,358.72/665,038.08 = 110,934.72/x
  3. Step 3: Cross multiply
    443,358.72x = 665,038.08 × 110,934.72
  4. Step 4: Simplify right side
    443,358.72x = 73,775,813,194.14
  5. Step 5: Solve for x
    x = 73,775,813,194.14/443,358.72
  6. Step 6: Final answer
    x = 166,402.08

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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.