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Finding the Fourth Proportional to 237,726.24, 328,059.28 and 128,828.24

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Solution

The fourth proportional to 237,726.24, 328,059.28 and 128,828.24 is: 177,781.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,726.24 : 328,059.28 = 128,828.24 : x
  2. Step 2: Convert to fraction form
    237,726.24/328,059.28 = 128,828.24/x
  3. Step 3: Cross multiply
    237,726.24x = 328,059.28 × 128,828.24
  4. Step 4: Simplify right side
    237,726.24x = 42,263,299,658.07
  5. Step 5: Solve for x
    x = 42,263,299,658.07/237,726.24
  6. Step 6: Final answer
    x = 177,781.38

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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.