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Finding the Fourth Proportional to 104,615.37, 156,921.67 and 25,730.28

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Solution

The fourth proportional to 104,615.37, 156,921.67 and 25,730.28 is: 38,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.37 : 156,921.67 = 25,730.28 : x
  2. Step 2: Convert to fraction form
    104,615.37/156,921.67 = 25,730.28/x
  3. Step 3: Cross multiply
    104,615.37x = 156,921.67 × 25,730.28
  4. Step 4: Simplify right side
    104,615.37x = 4,037,638,507.17
  5. Step 5: Solve for x
    x = 4,037,638,507.17/104,615.37
  6. Step 6: Final answer
    x = 38,595.08

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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.