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Finding the Fourth Proportional to 92,674, 127,903.78 and 58,685.59

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Solution

The fourth proportional to 92,674, 127,903.78 and 58,685.59 is: 80,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,674 : 127,903.78 = 58,685.59 : x
  2. Step 2: Convert to fraction form
    92,674/127,903.78 = 58,685.59/x
  3. Step 3: Cross multiply
    92,674x = 127,903.78 × 58,685.59
  4. Step 4: Simplify right side
    92,674x = 7,506,108,792.53
  5. Step 5: Solve for x
    x = 7,506,108,792.53/92,674
  6. Step 6: Final answer
    x = 80,994.76

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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.