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Finding the Fourth Proportional to 86,657.63, 119,575.63 and 48,412.42

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Solution

The fourth proportional to 86,657.63, 119,575.63 and 48,412.42 is: 66,802.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,657.63 : 119,575.63 = 48,412.42 : x
  2. Step 2: Convert to fraction form
    86,657.63/119,575.63 = 48,412.42/x
  3. Step 3: Cross multiply
    86,657.63x = 119,575.63 × 48,412.42
  4. Step 4: Simplify right side
    86,657.63x = 5,788,945,621.32
  5. Step 5: Solve for x
    x = 5,788,945,621.32/86,657.63
  6. Step 6: Final answer
    x = 66,802.49

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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.