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Finding the Fourth Proportional to 70,336.94, 105,501.74 and 17,746.88

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Solution

The fourth proportional to 70,336.94, 105,501.74 and 17,746.88 is: 26,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,336.94 : 105,501.74 = 17,746.88 : x
  2. Step 2: Convert to fraction form
    70,336.94/105,501.74 = 17,746.88/x
  3. Step 3: Cross multiply
    70,336.94x = 105,501.74 × 17,746.88
  4. Step 4: Simplify right side
    70,336.94x = 1,872,326,103.33
  5. Step 5: Solve for x
    x = 1,872,326,103.33/70,336.94
  6. Step 6: Final answer
    x = 26,619.39

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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.