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Finding the Fourth Proportional to 369,138, 553,799.48 and 106,482

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Solution

The fourth proportional to 369,138, 553,799.48 and 106,482 is: 159,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,138 : 553,799.48 = 106,482 : x
  2. Step 2: Convert to fraction form
    369,138/553,799.48 = 106,482/x
  3. Step 3: Cross multiply
    369,138x = 553,799.48 × 106,482
  4. Step 4: Simplify right side
    369,138x = 58,969,676,229.36
  5. Step 5: Solve for x
    x = 58,969,676,229.36/369,138
  6. Step 6: Final answer
    x = 159,749.68

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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.