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Finding the Fourth Proportional to 201,122.48, 301,810.80 and 112,434.24

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Solution

The fourth proportional to 201,122.48, 301,810.80 and 112,434.24 is: 168,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,122.48 : 301,810.80 = 112,434.24 : x
  2. Step 2: Convert to fraction form
    201,122.48/301,810.80 = 112,434.24/x
  3. Step 3: Cross multiply
    201,122.48x = 301,810.80 × 112,434.24
  4. Step 4: Simplify right side
    201,122.48x = 33,933,867,921.79
  5. Step 5: Solve for x
    x = 33,933,867,921.79/201,122.48
  6. Step 6: Final answer
    x = 168,722.40

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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.