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Finding the Fourth Proportional to 172,457.38, 237,787.64 and 118,035.80

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Solution

The fourth proportional to 172,457.38, 237,787.64 and 118,035.80 is: 162,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,457.38 : 237,787.64 = 118,035.80 : x
  2. Step 2: Convert to fraction form
    172,457.38/237,787.64 = 118,035.80/x
  3. Step 3: Cross multiply
    172,457.38x = 237,787.64 × 118,035.80
  4. Step 4: Simplify right side
    172,457.38x = 28,067,454,317.51
  5. Step 5: Solve for x
    x = 28,067,454,317.51/172,457.38
  6. Step 6: Final answer
    x = 162,750.09

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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.