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Finding the Fourth Proportional to 153,534.44, 211,840.44 and 86,466.44

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Solution

The fourth proportional to 153,534.44, 211,840.44 and 86,466.44 is: 119,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,534.44 : 211,840.44 = 86,466.44 : x
  2. Step 2: Convert to fraction form
    153,534.44/211,840.44 = 86,466.44/x
  3. Step 3: Cross multiply
    153,534.44x = 211,840.44 × 86,466.44
  4. Step 4: Simplify right side
    153,534.44x = 18,317,088,694.83
  5. Step 5: Solve for x
    x = 18,317,088,694.83/153,534.44
  6. Step 6: Final answer
    x = 119,302.80

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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.