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Finding the Fourth Proportional to 236,083.88, 325,795.80 and 128,653.93

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Solution

The fourth proportional to 236,083.88, 325,795.80 and 128,653.93 is: 177,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,083.88 : 325,795.80 = 128,653.93 : x
  2. Step 2: Convert to fraction form
    236,083.88/325,795.80 = 128,653.93/x
  3. Step 3: Cross multiply
    236,083.88x = 325,795.80 × 128,653.93
  4. Step 4: Simplify right side
    236,083.88x = 41,914,910,937.19
  5. Step 5: Solve for x
    x = 41,914,910,937.19/236,083.88
  6. Step 6: Final answer
    x = 177,542.45

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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.