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Finding the Fourth Proportional to 253,708.48, 350,189.76 and 153,112.96

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Solution

The fourth proportional to 253,708.48, 350,189.76 and 153,112.96 is: 211,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,708.48 : 350,189.76 = 153,112.96 : x
  2. Step 2: Convert to fraction form
    253,708.48/350,189.76 = 153,112.96/x
  3. Step 3: Cross multiply
    253,708.48x = 350,189.76 × 153,112.96
  4. Step 4: Simplify right side
    253,708.48x = 53,618,590,715.29
  5. Step 5: Solve for x
    x = 53,618,590,715.29/253,708.48
  6. Step 6: Final answer
    x = 211,339.37

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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.