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Finding the Fourth Proportional to 161,820.55, 223,311.63 and 93,876.94

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Solution

The fourth proportional to 161,820.55, 223,311.63 and 93,876.94 is: 129,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,820.55 : 223,311.63 = 93,876.94 : x
  2. Step 2: Convert to fraction form
    161,820.55/223,311.63 = 93,876.94/x
  3. Step 3: Cross multiply
    161,820.55x = 223,311.63 × 93,876.94
  4. Step 4: Simplify right side
    161,820.55x = 20,963,812,490.81
  5. Step 5: Solve for x
    x = 20,963,812,490.81/161,820.55
  6. Step 6: Final answer
    x = 129,549.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.