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Finding the Fourth Proportional to 127,665.76, 191,586.12 and 44,559.76

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Solution

The fourth proportional to 127,665.76, 191,586.12 and 44,559.76 is: 66,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,665.76 : 191,586.12 = 44,559.76 : x
  2. Step 2: Convert to fraction form
    127,665.76/191,586.12 = 44,559.76/x
  3. Step 3: Cross multiply
    127,665.76x = 191,586.12 × 44,559.76
  4. Step 4: Simplify right side
    127,665.76x = 8,537,031,526.53
  5. Step 5: Solve for x
    x = 8,537,031,526.53/127,665.76
  6. Step 6: Final answer
    x = 66,870.17

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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.