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Finding the Fourth Proportional to 156,486.53, 234,674.21 and 56,620.82

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Solution

The fourth proportional to 156,486.53, 234,674.21 and 56,620.82 is: 84,911.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,486.53 : 234,674.21 = 56,620.82 : x
  2. Step 2: Convert to fraction form
    156,486.53/234,674.21 = 56,620.82/x
  3. Step 3: Cross multiply
    156,486.53x = 234,674.21 × 56,620.82
  4. Step 4: Simplify right side
    156,486.53x = 13,287,446,931.29
  5. Step 5: Solve for x
    x = 13,287,446,931.29/156,486.53
  6. Step 6: Final answer
    x = 84,911.12

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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.