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Finding the Fourth Proportional to 171,702.47, 257,590.55 and 57,861.51

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Solution

The fourth proportional to 171,702.47, 257,590.55 and 57,861.51 is: 86,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,702.47 : 257,590.55 = 57,861.51 : x
  2. Step 2: Convert to fraction form
    171,702.47/257,590.55 = 57,861.51/x
  3. Step 3: Cross multiply
    171,702.47x = 257,590.55 × 57,861.51
  4. Step 4: Simplify right side
    171,702.47x = 14,904,577,895.42
  5. Step 5: Solve for x
    x = 14,904,577,895.42/171,702.47
  6. Step 6: Final answer
    x = 86,804.68

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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.