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Finding the Fourth Proportional to 92,511.53, 127,678.42 and 54,280.34

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Solution

The fourth proportional to 92,511.53, 127,678.42 and 54,280.34 is: 74,914.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,511.53 : 127,678.42 = 54,280.34 : x
  2. Step 2: Convert to fraction form
    92,511.53/127,678.42 = 54,280.34/x
  3. Step 3: Cross multiply
    92,511.53x = 127,678.42 × 54,280.34
  4. Step 4: Simplify right side
    92,511.53x = 6,930,428,048.26
  5. Step 5: Solve for x
    x = 6,930,428,048.26/92,511.53
  6. Step 6: Final answer
    x = 74,914.21

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1.5x scale

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.