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Finding the Fourth Proportional to 104,507.75, 156,612.17 and 83,511.63

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Solution

The fourth proportional to 104,507.75, 156,612.17 and 83,511.63 is: 125,148.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,507.75 : 156,612.17 = 83,511.63 : x
  2. Step 2: Convert to fraction form
    104,507.75/156,612.17 = 83,511.63/x
  3. Step 3: Cross multiply
    104,507.75x = 156,612.17 × 83,511.63
  4. Step 4: Simplify right side
    104,507.75x = 13,078,937,803.32
  5. Step 5: Solve for x
    x = 13,078,937,803.32/104,507.75
  6. Step 6: Final answer
    x = 125,148.02

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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.