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Finding the Fourth Proportional to 268,056.89, 369,948.03 and 153,346.11

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Solution

The fourth proportional to 268,056.89, 369,948.03 and 153,346.11 is: 211,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,056.89 : 369,948.03 = 153,346.11 : x
  2. Step 2: Convert to fraction form
    268,056.89/369,948.03 = 153,346.11/x
  3. Step 3: Cross multiply
    268,056.89x = 369,948.03 × 153,346.11
  4. Step 4: Simplify right side
    268,056.89x = 56,730,091,302.66
  5. Step 5: Solve for x
    x = 56,730,091,302.66/268,056.89
  6. Step 6: Final answer
    x = 211,634.52

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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.