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Finding the Fourth Proportional to 153,015.70, 229,523.55 and 111,543.70

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Solution

The fourth proportional to 153,015.70, 229,523.55 and 111,543.70 is: 167,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,015.70 : 229,523.55 = 111,543.70 : x
  2. Step 2: Convert to fraction form
    153,015.70/229,523.55 = 111,543.70/x
  3. Step 3: Cross multiply
    153,015.70x = 229,523.55 × 111,543.70
  4. Step 4: Simplify right side
    153,015.70x = 25,601,906,004.14
  5. Step 5: Solve for x
    x = 25,601,906,004.14/153,015.70
  6. Step 6: Final answer
    x = 167,315.55

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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.