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Finding the Fourth Proportional to 92,515.77, 127,666.94 and 54,270

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Solution

The fourth proportional to 92,515.77, 127,666.94 and 54,270 is: 74,889.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,515.77 : 127,666.94 = 54,270 : x
  2. Step 2: Convert to fraction form
    92,515.77/127,666.94 = 54,270/x
  3. Step 3: Cross multiply
    92,515.77x = 127,666.94 × 54,270
  4. Step 4: Simplify right side
    92,515.77x = 6,928,484,562.45
  5. Step 5: Solve for x
    x = 6,928,484,562.45/92,515.77
  6. Step 6: Final answer
    x = 74,889.77

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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.