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Finding the Fourth Proportional to 92,931.84, 139,397.76 and 33,756.48

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Solution

The fourth proportional to 92,931.84, 139,397.76 and 33,756.48 is: 50,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,931.84 : 139,397.76 = 33,756.48 : x
  2. Step 2: Convert to fraction form
    92,931.84/139,397.76 = 33,756.48/x
  3. Step 3: Cross multiply
    92,931.84x = 139,397.76 × 33,756.48
  4. Step 4: Simplify right side
    92,931.84x = 4,705,577,697.48
  5. Step 5: Solve for x
    x = 4,705,577,697.48/92,931.84
  6. Step 6: Final answer
    x = 50,634.72

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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.