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Finding the Fourth Proportional to 172,457.10, 258,980.85 and 93,725.10

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Solution

The fourth proportional to 172,457.10, 258,980.85 and 93,725.10 is: 140,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,457.10 : 258,980.85 = 93,725.10 : x
  2. Step 2: Convert to fraction form
    172,457.10/258,980.85 = 93,725.10/x
  3. Step 3: Cross multiply
    172,457.10x = 258,980.85 × 93,725.10
  4. Step 4: Simplify right side
    172,457.10x = 24,273,006,064.34
  5. Step 5: Solve for x
    x = 24,273,006,064.34/172,457.10
  6. Step 6: Final answer
    x = 140,748.08

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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.