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Finding the Fourth Proportional to 329,547.80, 494,402.70 and 92,887.40

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Solution

The fourth proportional to 329,547.80, 494,402.70 and 92,887.40 is: 139,353.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,547.80 : 494,402.70 = 92,887.40 : x
  2. Step 2: Convert to fraction form
    329,547.80/494,402.70 = 92,887.40/x
  3. Step 3: Cross multiply
    329,547.80x = 494,402.70 × 92,887.40
  4. Step 4: Simplify right side
    329,547.80x = 45,923,781,355.98
  5. Step 5: Solve for x
    x = 45,923,781,355.98/329,547.80
  6. Step 6: Final answer
    x = 139,353.93

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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.