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Finding the Fourth Proportional to 125,890.92, 188,953.02 and 63,605.16

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Solution

The fourth proportional to 125,890.92, 188,953.02 and 63,605.16 is: 95,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,890.92 : 188,953.02 = 63,605.16 : x
  2. Step 2: Convert to fraction form
    125,890.92/188,953.02 = 63,605.16/x
  3. Step 3: Cross multiply
    125,890.92x = 188,953.02 × 63,605.16
  4. Step 4: Simplify right side
    125,890.92x = 12,018,387,069.58
  5. Step 5: Solve for x
    x = 12,018,387,069.58/125,890.92
  6. Step 6: Final answer
    x = 95,466.67

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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.