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Finding the Fourth Proportional to 88,263, 121,802.94 and 48,519

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Solution

The fourth proportional to 88,263, 121,802.94 and 48,519 is: 66,956.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,263 : 121,802.94 = 48,519 : x
  2. Step 2: Convert to fraction form
    88,263/121,802.94 = 48,519/x
  3. Step 3: Cross multiply
    88,263x = 121,802.94 × 48,519
  4. Step 4: Simplify right side
    88,263x = 5,909,756,845.86
  5. Step 5: Solve for x
    x = 5,909,756,845.86/88,263
  6. Step 6: Final answer
    x = 66,956.22

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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.