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Finding the Fourth Proportional to 191,457.98, 264,293.70 and 136,302.86

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Solution

The fourth proportional to 191,457.98, 264,293.70 and 136,302.86 is: 188,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,457.98 : 264,293.70 = 136,302.86 : x
  2. Step 2: Convert to fraction form
    191,457.98/264,293.70 = 136,302.86/x
  3. Step 3: Cross multiply
    191,457.98x = 264,293.70 × 136,302.86
  4. Step 4: Simplify right side
    191,457.98x = 36,023,987,189.98
  5. Step 5: Solve for x
    x = 36,023,987,189.98/191,457.98
  6. Step 6: Final answer
    x = 188,156.10

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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.