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Finding the Fourth Proportional to 172,702.72, 259,052.64 and 48,043.36

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Solution

The fourth proportional to 172,702.72, 259,052.64 and 48,043.36 is: 72,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,702.72 : 259,052.64 = 48,043.36 : x
  2. Step 2: Convert to fraction form
    172,702.72/259,052.64 = 48,043.36/x
  3. Step 3: Cross multiply
    172,702.72x = 259,052.64 × 48,043.36
  4. Step 4: Simplify right side
    172,702.72x = 12,445,759,242.47
  5. Step 5: Solve for x
    x = 12,445,759,242.47/172,702.72
  6. Step 6: Final answer
    x = 72,064.64

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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.