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Finding the Fourth Proportional to 235,995.94, 325,677.93 and 128,565.95

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Solution

The fourth proportional to 235,995.94, 325,677.93 and 128,565.95 is: 177,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,995.94 : 325,677.93 = 128,565.95 : x
  2. Step 2: Convert to fraction form
    235,995.94/325,677.93 = 128,565.95/x
  3. Step 3: Cross multiply
    235,995.94x = 325,677.93 × 128,565.95
  4. Step 4: Simplify right side
    235,995.94x = 41,871,090,836.09
  5. Step 5: Solve for x
    x = 41,871,090,836.09/235,995.94
  6. Step 6: Final answer
    x = 177,422.93

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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.