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Finding the Fourth Proportional to 189,242.48, 283,880.12 and 69,332

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Solution

The fourth proportional to 189,242.48, 283,880.12 and 69,332 is: 104,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,242.48 : 283,880.12 = 69,332 : x
  2. Step 2: Convert to fraction form
    189,242.48/283,880.12 = 69,332/x
  3. Step 3: Cross multiply
    189,242.48x = 283,880.12 × 69,332
  4. Step 4: Simplify right side
    189,242.48x = 19,681,976,479.84
  5. Step 5: Solve for x
    x = 19,681,976,479.84/189,242.48
  6. Step 6: Final answer
    x = 104,004.01

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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.