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Finding the Fourth Proportional to 88,580.84, 122,172.44 and 56,752.72

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Solution

The fourth proportional to 88,580.84, 122,172.44 and 56,752.72 is: 78,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,580.84 : 122,172.44 = 56,752.72 : x
  2. Step 2: Convert to fraction form
    88,580.84/122,172.44 = 56,752.72/x
  3. Step 3: Cross multiply
    88,580.84x = 122,172.44 × 56,752.72
  4. Step 4: Simplify right side
    88,580.84x = 6,933,618,279.04
  5. Step 5: Solve for x
    x = 6,933,618,279.04/88,580.84
  6. Step 6: Final answer
    x = 78,274.47

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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.