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Finding the Fourth Proportional to 273,285.12, 409,916.04 and 93,386.76

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Solution

The fourth proportional to 273,285.12, 409,916.04 and 93,386.76 is: 140,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,285.12 : 409,916.04 = 93,386.76 : x
  2. Step 2: Convert to fraction form
    273,285.12/409,916.04 = 93,386.76/x
  3. Step 3: Cross multiply
    273,285.12x = 409,916.04 × 93,386.76
  4. Step 4: Simplify right side
    273,285.12x = 38,280,730,847.63
  5. Step 5: Solve for x
    x = 38,280,730,847.63/273,285.12
  6. Step 6: Final answer
    x = 140,076.16

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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.