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Finding the Fourth Proportional to 92,063.34, 127,048.79 and 56,245.76

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Solution

The fourth proportional to 92,063.34, 127,048.79 and 56,245.76 is: 77,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,063.34 : 127,048.79 = 56,245.76 : x
  2. Step 2: Convert to fraction form
    92,063.34/127,048.79 = 56,245.76/x
  3. Step 3: Cross multiply
    92,063.34x = 127,048.79 × 56,245.76
  4. Step 4: Simplify right side
    92,063.34x = 7,145,954,834.16
  5. Step 5: Solve for x
    x = 7,145,954,834.16/92,063.34
  6. Step 6: Final answer
    x = 77,619.98

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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.