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Finding the Fourth Proportional to 169,448.62, 254,173.80 and 57,129.81

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Solution

The fourth proportional to 169,448.62, 254,173.80 and 57,129.81 is: 85,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,448.62 : 254,173.80 = 57,129.81 : x
  2. Step 2: Convert to fraction form
    169,448.62/254,173.80 = 57,129.81/x
  3. Step 3: Cross multiply
    169,448.62x = 254,173.80 × 57,129.81
  4. Step 4: Simplify right side
    169,448.62x = 14,520,899,840.71
  5. Step 5: Solve for x
    x = 14,520,899,840.71/169,448.62
  6. Step 6: Final answer
    x = 85,695.00

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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.