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Finding the Fourth Proportional to 160,403, 221,414.49 and 93,335

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Solution

The fourth proportional to 160,403, 221,414.49 and 93,335 is: 128,836.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,403 : 221,414.49 = 93,335 : x
  2. Step 2: Convert to fraction form
    160,403/221,414.49 = 93,335/x
  3. Step 3: Cross multiply
    160,403x = 221,414.49 × 93,335
  4. Step 4: Simplify right side
    160,403x = 20,665,721,424.15
  5. Step 5: Solve for x
    x = 20,665,721,424.15/160,403
  6. Step 6: Final answer
    x = 128,836.25

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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.