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Finding the Fourth Proportional to 114,659.60, 172,019.09 and 43,583.45

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Solution

The fourth proportional to 114,659.60, 172,019.09 and 43,583.45 is: 65,386.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,659.60 : 172,019.09 = 43,583.45 : x
  2. Step 2: Convert to fraction form
    114,659.60/172,019.09 = 43,583.45/x
  3. Step 3: Cross multiply
    114,659.60x = 172,019.09 × 43,583.45
  4. Step 4: Simplify right side
    114,659.60x = 7,497,184,656.92
  5. Step 5: Solve for x
    x = 7,497,184,656.92/114,659.60
  6. Step 6: Final answer
    x = 65,386.46

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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.