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Finding the Fourth Proportional to 169,931.81, 254,898.11 and 51,604.04

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Solution

The fourth proportional to 169,931.81, 254,898.11 and 51,604.04 is: 77,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,931.81 : 254,898.11 = 51,604.04 : x
  2. Step 2: Convert to fraction form
    169,931.81/254,898.11 = 51,604.04/x
  3. Step 3: Cross multiply
    169,931.81x = 254,898.11 × 51,604.04
  4. Step 4: Simplify right side
    169,931.81x = 13,153,771,118.88
  5. Step 5: Solve for x
    x = 13,153,771,118.88/169,931.81
  6. Step 6: Final answer
    x = 77,406.18

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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.