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Finding the Fourth Proportional to 180,038.40, 269,890.62 and 61,681.62

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Solution

The fourth proportional to 180,038.40, 269,890.62 and 61,681.62 is: 92,465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,038.40 : 269,890.62 = 61,681.62 : x
  2. Step 2: Convert to fraction form
    180,038.40/269,890.62 = 61,681.62/x
  3. Step 3: Cross multiply
    180,038.40x = 269,890.62 × 61,681.62
  4. Step 4: Simplify right side
    180,038.40x = 16,647,290,664.40
  5. Step 5: Solve for x
    x = 16,647,290,664.40/180,038.40
  6. Step 6: Final answer
    x = 92,465.22

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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.