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Finding the Fourth Proportional to 369,139, 553,800.98 and 106,483

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Solution

The fourth proportional to 369,139, 553,800.98 and 106,483 is: 159,751.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,139 : 553,800.98 = 106,483 : x
  2. Step 2: Convert to fraction form
    369,139/553,800.98 = 106,483/x
  3. Step 3: Cross multiply
    369,139x = 553,800.98 × 106,483
  4. Step 4: Simplify right side
    369,139x = 58,970,389,753.34
  5. Step 5: Solve for x
    x = 58,970,389,753.34/369,139
  6. Step 6: Final answer
    x = 159,751.18

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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.