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Finding the Fourth Proportional to 253,472.72, 349,879.80 and 146,085.56

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Solution

The fourth proportional to 253,472.72, 349,879.80 and 146,085.56 is: 201,648.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,472.72 : 349,879.80 = 146,085.56 : x
  2. Step 2: Convert to fraction form
    253,472.72/349,879.80 = 146,085.56/x
  3. Step 3: Cross multiply
    253,472.72x = 349,879.80 × 146,085.56
  4. Step 4: Simplify right side
    253,472.72x = 51,112,386,515.69
  5. Step 5: Solve for x
    x = 51,112,386,515.69/253,472.72
  6. Step 6: Final answer
    x = 201,648.47

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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.