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Finding the Fourth Proportional to 256,511.10, 384,766.65 and 116,543.10

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Solution

The fourth proportional to 256,511.10, 384,766.65 and 116,543.10 is: 174,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,511.10 : 384,766.65 = 116,543.10 : x
  2. Step 2: Convert to fraction form
    256,511.10/384,766.65 = 116,543.10/x
  3. Step 3: Cross multiply
    256,511.10x = 384,766.65 × 116,543.10
  4. Step 4: Simplify right side
    256,511.10x = 44,841,898,167.62
  5. Step 5: Solve for x
    x = 44,841,898,167.62/256,511.10
  6. Step 6: Final answer
    x = 174,814.65

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1.5x scale

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.