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Finding the Fourth Proportional to 128,102.04, 192,019.08 and 43,833.90

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Solution

The fourth proportional to 128,102.04, 192,019.08 and 43,833.90 is: 65,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,102.04 : 192,019.08 = 43,833.90 : x
  2. Step 2: Convert to fraction form
    128,102.04/192,019.08 = 43,833.90/x
  3. Step 3: Cross multiply
    128,102.04x = 192,019.08 × 43,833.90
  4. Step 4: Simplify right side
    128,102.04x = 8,416,945,150.81
  5. Step 5: Solve for x
    x = 8,416,945,150.81/128,102.04
  6. Step 6: Final answer
    x = 65,705.00

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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.