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Finding the Fourth Proportional to 153,912.96, 211,926.08 and 131,200.96

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Solution

The fourth proportional to 153,912.96, 211,926.08 and 131,200.96 is: 180,653.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,912.96 : 211,926.08 = 131,200.96 : x
  2. Step 2: Convert to fraction form
    153,912.96/211,926.08 = 131,200.96/x
  3. Step 3: Cross multiply
    153,912.96x = 211,926.08 × 131,200.96
  4. Step 4: Simplify right side
    153,912.96x = 27,804,905,145.04
  5. Step 5: Solve for x
    x = 27,804,905,145.04/153,912.96
  6. Step 6: Final answer
    x = 180,653.44

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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.