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Finding the Fourth Proportional to 70,225.30, 105,348.45 and 25,848.67

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Solution

The fourth proportional to 70,225.30, 105,348.45 and 25,848.67 is: 38,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.30 : 105,348.45 = 25,848.67 : x
  2. Step 2: Convert to fraction form
    70,225.30/105,348.45 = 25,848.67/x
  3. Step 3: Cross multiply
    70,225.30x = 105,348.45 × 25,848.67
  4. Step 4: Simplify right side
    70,225.30x = 2,723,117,204.75
  5. Step 5: Solve for x
    x = 2,723,117,204.75/70,225.30
  6. Step 6: Final answer
    x = 38,776.87

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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.