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Finding the Fourth Proportional to 369,144, 553,808.48 and 106,488

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Solution

The fourth proportional to 369,144, 553,808.48 and 106,488 is: 159,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,144 : 553,808.48 = 106,488 : x
  2. Step 2: Convert to fraction form
    369,144/553,808.48 = 106,488/x
  3. Step 3: Cross multiply
    369,144x = 553,808.48 × 106,488
  4. Step 4: Simplify right side
    369,144x = 58,973,957,418.24
  5. Step 5: Solve for x
    x = 58,973,957,418.24/369,144
  6. Step 6: Final answer
    x = 159,758.68

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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.