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Finding the Fourth Proportional to 169,708.60, 254,575.66 and 51,389.47

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Solution

The fourth proportional to 169,708.60, 254,575.66 and 51,389.47 is: 77,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,708.60 : 254,575.66 = 51,389.47 : x
  2. Step 2: Convert to fraction form
    169,708.60/254,575.66 = 51,389.47/x
  3. Step 3: Cross multiply
    169,708.60x = 254,575.66 × 51,389.47
  4. Step 4: Simplify right side
    169,708.60x = 13,082,508,242.30
  5. Step 5: Solve for x
    x = 13,082,508,242.30/169,708.60
  6. Step 6: Final answer
    x = 77,088.07

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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.