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Finding the Fourth Proportional to 92,772, 139,222.80 and 37,368

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Solution

The fourth proportional to 92,772, 139,222.80 and 37,368 is: 56,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,772 : 139,222.80 = 37,368 : x
  2. Step 2: Convert to fraction form
    92,772/139,222.80 = 37,368/x
  3. Step 3: Cross multiply
    92,772x = 139,222.80 × 37,368
  4. Step 4: Simplify right side
    92,772x = 5,202,477,590.40
  5. Step 5: Solve for x
    x = 5,202,477,590.40/92,772
  6. Step 6: Final answer
    x = 56,078.10

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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.