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Finding the Fourth Proportional to 369,228, 553,785.84 and 102,960.48

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Solution

The fourth proportional to 369,228, 553,785.84 and 102,960.48 is: 154,425.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,228 : 553,785.84 = 102,960.48 : x
  2. Step 2: Convert to fraction form
    369,228/553,785.84 = 102,960.48/x
  3. Step 3: Cross multiply
    369,228x = 553,785.84 × 102,960.48
  4. Step 4: Simplify right side
    369,228x = 57,018,055,903.60
  5. Step 5: Solve for x
    x = 57,018,055,903.60/369,228
  6. Step 6: Final answer
    x = 154,425.06

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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.