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Finding the Fourth Proportional to 369,186.40, 553,617.60 and 169,440.40

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Solution

The fourth proportional to 369,186.40, 553,617.60 and 169,440.40 is: 254,086.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,186.40 : 553,617.60 = 169,440.40 : x
  2. Step 2: Convert to fraction form
    369,186.40/553,617.60 = 169,440.40/x
  3. Step 3: Cross multiply
    369,186.40x = 553,617.60 × 169,440.40
  4. Step 4: Simplify right side
    369,186.40x = 93,805,187,591.04
  5. Step 5: Solve for x
    x = 93,805,187,591.04/369,186.40
  6. Step 6: Final answer
    x = 254,086.25

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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.