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Finding the Fourth Proportional to 368,999.40, 553,337.10 and 169,253.40

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Solution

The fourth proportional to 368,999.40, 553,337.10 and 169,253.40 is: 253,805.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,999.40 : 553,337.10 = 169,253.40 : x
  2. Step 2: Convert to fraction form
    368,999.40/553,337.10 = 169,253.40/x
  3. Step 3: Cross multiply
    368,999.40x = 553,337.10 × 169,253.40
  4. Step 4: Simplify right side
    368,999.40x = 93,654,185,521.14
  5. Step 5: Solve for x
    x = 93,654,185,521.14/368,999.40
  6. Step 6: Final answer
    x = 253,805.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.