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Finding the Fourth Proportional to 61,477.20, 92,215.80 and 36,545.40

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Solution

The fourth proportional to 61,477.20, 92,215.80 and 36,545.40 is: 54,818.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,477.20 : 92,215.80 = 36,545.40 : x
  2. Step 2: Convert to fraction form
    61,477.20/92,215.80 = 36,545.40/x
  3. Step 3: Cross multiply
    61,477.20x = 92,215.80 × 36,545.40
  4. Step 4: Simplify right side
    61,477.20x = 3,370,063,297.32
  5. Step 5: Solve for x
    x = 3,370,063,297.32/61,477.20
  6. Step 6: Final answer
    x = 54,818.10

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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.