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Finding the Fourth Proportional to 369,086.92, 553,630.72 and 102,854.52

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Solution

The fourth proportional to 369,086.92, 553,630.72 and 102,854.52 is: 154,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,086.92 : 553,630.72 = 102,854.52 : x
  2. Step 2: Convert to fraction form
    369,086.92/553,630.72 = 102,854.52/x
  3. Step 3: Cross multiply
    369,086.92x = 553,630.72 × 102,854.52
  4. Step 4: Simplify right side
    369,086.92x = 56,943,421,962.85
  5. Step 5: Solve for x
    x = 56,943,421,962.85/369,086.92
  6. Step 6: Final answer
    x = 154,281.87

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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.