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Finding the Fourth Proportional to 169,689.47, 254,534.81 and 57,370.61

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Solution

The fourth proportional to 169,689.47, 254,534.81 and 57,370.61 is: 86,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,689.47 : 254,534.81 = 57,370.61 : x
  2. Step 2: Convert to fraction form
    169,689.47/254,534.81 = 57,370.61/x
  3. Step 3: Cross multiply
    169,689.47x = 254,534.81 × 57,370.61
  4. Step 4: Simplify right side
    169,689.47x = 14,602,817,665.42
  5. Step 5: Solve for x
    x = 14,602,817,665.42/169,689.47
  6. Step 6: Final answer
    x = 86,056.12

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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.