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Finding the Fourth Proportional to 132,617.63, 183,014.66 and 72,190.01

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Solution

The fourth proportional to 132,617.63, 183,014.66 and 72,190.01 is: 99,623.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,617.63 : 183,014.66 = 72,190.01 : x
  2. Step 2: Convert to fraction form
    132,617.63/183,014.66 = 72,190.01/x
  3. Step 3: Cross multiply
    132,617.63x = 183,014.66 × 72,190.01
  4. Step 4: Simplify right side
    132,617.63x = 13,211,830,135.55
  5. Step 5: Solve for x
    x = 13,211,830,135.55/132,617.63
  6. Step 6: Final answer
    x = 99,623.48

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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.