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Finding the Fourth Proportional to 110,445, 152,415.72 and 60,144

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Solution

The fourth proportional to 110,445, 152,415.72 and 60,144 is: 82,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,445 : 152,415.72 = 60,144 : x
  2. Step 2: Convert to fraction form
    110,445/152,415.72 = 60,144/x
  3. Step 3: Cross multiply
    110,445x = 152,415.72 × 60,144
  4. Step 4: Simplify right side
    110,445x = 9,166,891,063.68
  5. Step 5: Solve for x
    x = 9,166,891,063.68/110,445
  6. Step 6: Final answer
    x = 82,999.60

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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.