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Finding the Fourth Proportional to 104,429, 144,120.66 and 59,725.64

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Solution

The fourth proportional to 104,429, 144,120.66 and 59,725.64 is: 82,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,429 : 144,120.66 = 59,725.64 : x
  2. Step 2: Convert to fraction form
    104,429/144,120.66 = 59,725.64/x
  3. Step 3: Cross multiply
    104,429x = 144,120.66 × 59,725.64
  4. Step 4: Simplify right side
    104,429x = 8,607,698,655.72
  5. Step 5: Solve for x
    x = 8,607,698,655.72/104,429
  6. Step 6: Final answer
    x = 82,426.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.