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Finding the Fourth Proportional to 172,836, 238,513.82 and 93,348

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Solution

The fourth proportional to 172,836, 238,513.82 and 93,348 is: 128,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,836 : 238,513.82 = 93,348 : x
  2. Step 2: Convert to fraction form
    172,836/238,513.82 = 93,348/x
  3. Step 3: Cross multiply
    172,836x = 238,513.82 × 93,348
  4. Step 4: Simplify right side
    172,836x = 22,264,787,602.62
  5. Step 5: Solve for x
    x = 22,264,787,602.62/172,836
  6. Step 6: Final answer
    x = 128,820.31

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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.