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Finding the Fourth Proportional to 185,118.17, 277,619.81 and 66,774.06

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Solution

The fourth proportional to 185,118.17, 277,619.81 and 66,774.06 is: 100,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,118.17 : 277,619.81 = 66,774.06 : x
  2. Step 2: Convert to fraction form
    185,118.17/277,619.81 = 66,774.06/x
  3. Step 3: Cross multiply
    185,118.17x = 277,619.81 × 66,774.06
  4. Step 4: Simplify right side
    185,118.17x = 18,537,801,516.26
  5. Step 5: Solve for x
    x = 18,537,801,516.26/185,118.17
  6. Step 6: Final answer
    x = 100,140.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.