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Finding the Fourth Proportional to 104,485.60, 156,728.58 and 25,600.06

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Solution

The fourth proportional to 104,485.60, 156,728.58 and 25,600.06 is: 38,400.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,485.60 : 156,728.58 = 25,600.06 : x
  2. Step 2: Convert to fraction form
    104,485.60/156,728.58 = 25,600.06/x
  3. Step 3: Cross multiply
    104,485.60x = 156,728.58 × 25,600.06
  4. Step 4: Simplify right side
    104,485.60x = 4,012,261,051.71
  5. Step 5: Solve for x
    x = 4,012,261,051.71/104,485.60
  6. Step 6: Final answer
    x = 38,400.13

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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.