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Finding the Fourth Proportional to 172,434.51, 237,957.30 and 96,983.01

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Solution

The fourth proportional to 172,434.51, 237,957.30 and 96,983.01 is: 133,835.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,434.51 : 237,957.30 = 96,983.01 : x
  2. Step 2: Convert to fraction form
    172,434.51/237,957.30 = 96,983.01/x
  3. Step 3: Cross multiply
    172,434.51x = 237,957.30 × 96,983.01
  4. Step 4: Simplify right side
    172,434.51x = 23,077,815,205.47
  5. Step 5: Solve for x
    x = 23,077,815,205.47/172,434.51
  6. Step 6: Final answer
    x = 133,835.25

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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.