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Finding the Fourth Proportional to 57,159.94, 85,708.59 and 17,706.10

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Solution

The fourth proportional to 57,159.94, 85,708.59 and 17,706.10 is: 26,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,159.94 : 85,708.59 = 17,706.10 : x
  2. Step 2: Convert to fraction form
    57,159.94/85,708.59 = 17,706.10/x
  3. Step 3: Cross multiply
    57,159.94x = 85,708.59 × 17,706.10
  4. Step 4: Simplify right side
    57,159.94x = 1,517,564,865.40
  5. Step 5: Solve for x
    x = 1,517,564,865.40/57,159.94
  6. Step 6: Final answer
    x = 26,549.45

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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.