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Finding the Fourth Proportional to 66,068.83, 91,179.48 and 37,388.51

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Solution

The fourth proportional to 66,068.83, 91,179.48 and 37,388.51 is: 51,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,068.83 : 91,179.48 = 37,388.51 : x
  2. Step 2: Convert to fraction form
    66,068.83/91,179.48 = 37,388.51/x
  3. Step 3: Cross multiply
    66,068.83x = 91,179.48 × 37,388.51
  4. Step 4: Simplify right side
    66,068.83x = 3,409,064,899.77
  5. Step 5: Solve for x
    x = 3,409,064,899.77/66,068.83
  6. Step 6: Final answer
    x = 51,598.69

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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.