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Finding the Fourth Proportional to 169,605.84, 254,417.76 and 51,274.16

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Solution

The fourth proportional to 169,605.84, 254,417.76 and 51,274.16 is: 76,913.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,605.84 : 254,417.76 = 51,274.16 : x
  2. Step 2: Convert to fraction form
    169,605.84/254,417.76 = 51,274.16/x
  3. Step 3: Cross multiply
    169,605.84x = 254,417.76 × 51,274.16
  4. Step 4: Simplify right side
    169,605.84x = 13,045,056,933.08
  5. Step 5: Solve for x
    x = 13,045,056,933.08/169,605.84
  6. Step 6: Final answer
    x = 76,913.96

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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.