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Finding the Fourth Proportional to 171,547.20, 236,584.80 and 114,955.20

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Solution

The fourth proportional to 171,547.20, 236,584.80 and 114,955.20 is: 158,537.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,547.20 : 236,584.80 = 114,955.20 : x
  2. Step 2: Convert to fraction form
    171,547.20/236,584.80 = 114,955.20/x
  3. Step 3: Cross multiply
    171,547.20x = 236,584.80 × 114,955.20
  4. Step 4: Simplify right side
    171,547.20x = 27,196,653,000.96
  5. Step 5: Solve for x
    x = 27,196,653,000.96/171,547.20
  6. Step 6: Final answer
    x = 158,537.43

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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.