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Finding the Fourth Proportional to 369,603.40, 554,243.10 and 169,857.40

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Solution

The fourth proportional to 369,603.40, 554,243.10 and 169,857.40 is: 254,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,603.40 : 554,243.10 = 169,857.40 : x
  2. Step 2: Convert to fraction form
    369,603.40/554,243.10 = 169,857.40/x
  3. Step 3: Cross multiply
    369,603.40x = 554,243.10 × 169,857.40
  4. Step 4: Simplify right side
    369,603.40x = 94,142,291,933.94
  5. Step 5: Solve for x
    x = 94,142,291,933.94/369,603.40
  6. Step 6: Final answer
    x = 254,711.65

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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.