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Finding the Fourth Proportional to 169,486.48, 254,130.84 and 51,122.32

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Solution

The fourth proportional to 169,486.48, 254,130.84 and 51,122.32 is: 76,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,486.48 : 254,130.84 = 51,122.32 : x
  2. Step 2: Convert to fraction form
    169,486.48/254,130.84 = 51,122.32/x
  3. Step 3: Cross multiply
    169,486.48x = 254,130.84 × 51,122.32
  4. Step 4: Simplify right side
    169,486.48x = 12,991,758,124.35
  5. Step 5: Solve for x
    x = 12,991,758,124.35/169,486.48
  6. Step 6: Final answer
    x = 76,653.65

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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.