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Finding the Fourth Proportional to 169,444.51, 253,989.42 and 57,085.90

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Solution

The fourth proportional to 169,444.51, 253,989.42 and 57,085.90 is: 85,569.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,444.51 : 253,989.42 = 57,085.90 : x
  2. Step 2: Convert to fraction form
    169,444.51/253,989.42 = 57,085.90/x
  3. Step 3: Cross multiply
    169,444.51x = 253,989.42 × 57,085.90
  4. Step 4: Simplify right side
    169,444.51x = 14,499,215,162.74
  5. Step 5: Solve for x
    x = 14,499,215,162.74/169,444.51
  6. Step 6: Final answer
    x = 85,569.10

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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.