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Finding the Fourth Proportional to 172,064.59, 237,455.87 and 117,730.72

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Solution

The fourth proportional to 172,064.59, 237,455.87 and 117,730.72 is: 162,473.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,064.59 : 237,455.87 = 117,730.72 : x
  2. Step 2: Convert to fraction form
    172,064.59/237,455.87 = 117,730.72/x
  3. Step 3: Cross multiply
    172,064.59x = 237,455.87 × 117,730.72
  4. Step 4: Simplify right side
    172,064.59x = 27,955,848,915.80
  5. Step 5: Solve for x
    x = 27,955,848,915.80/172,064.59
  6. Step 6: Final answer
    x = 162,473.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.