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Finding the Fourth Proportional to 79,054.38, 118,498.95 and 34,643.70

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Solution

The fourth proportional to 79,054.38, 118,498.95 and 34,643.70 is: 51,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,054.38 : 118,498.95 = 34,643.70 : x
  2. Step 2: Convert to fraction form
    79,054.38/118,498.95 = 34,643.70/x
  3. Step 3: Cross multiply
    79,054.38x = 118,498.95 × 34,643.70
  4. Step 4: Simplify right side
    79,054.38x = 4,105,242,074.12
  5. Step 5: Solve for x
    x = 4,105,242,074.12/79,054.38
  6. Step 6: Final answer
    x = 51,929.34

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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.