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Finding the Fourth Proportional to 117,237.00, 161,784.93 and 66,248.63

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Solution

The fourth proportional to 117,237.00, 161,784.93 and 66,248.63 is: 91,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,237.00 : 161,784.93 = 66,248.63 : x
  2. Step 2: Convert to fraction form
    117,237.00/161,784.93 = 66,248.63/x
  3. Step 3: Cross multiply
    117,237.00x = 161,784.93 × 66,248.63
  4. Step 4: Simplify right side
    117,237.00x = 10,718,030,013.35
  5. Step 5: Solve for x
    x = 10,718,030,013.35/117,237.00
  6. Step 6: Final answer
    x = 91,421.90

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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.