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Finding the Fourth Proportional to 180,045.40, 269,901.12 and 61,688.62

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Solution

The fourth proportional to 180,045.40, 269,901.12 and 61,688.62 is: 92,475.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,045.40 : 269,901.12 = 61,688.62 : x
  2. Step 2: Convert to fraction form
    180,045.40/269,901.12 = 61,688.62/x
  3. Step 3: Cross multiply
    180,045.40x = 269,901.12 × 61,688.62
  4. Step 4: Simplify right side
    180,045.40x = 16,649,827,629.25
  5. Step 5: Solve for x
    x = 16,649,827,629.25/180,045.40
  6. Step 6: Final answer
    x = 92,475.72

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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.