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Finding the Fourth Proportional to 92,624.74, 127,828.02 and 56,809.88

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Solution

The fourth proportional to 92,624.74, 127,828.02 and 56,809.88 is: 78,401.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,624.74 : 127,828.02 = 56,809.88 : x
  2. Step 2: Convert to fraction form
    92,624.74/127,828.02 = 56,809.88/x
  3. Step 3: Cross multiply
    92,624.74x = 127,828.02 × 56,809.88
  4. Step 4: Simplify right side
    92,624.74x = 7,261,894,476.84
  5. Step 5: Solve for x
    x = 7,261,894,476.84/92,624.74
  6. Step 6: Final answer
    x = 78,401.24

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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.