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Finding the Fourth Proportional to 169,485.21, 254,242.60 and 55,598.88

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Solution

The fourth proportional to 169,485.21, 254,242.60 and 55,598.88 is: 83,403.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,485.21 : 254,242.60 = 55,598.88 : x
  2. Step 2: Convert to fraction form
    169,485.21/254,242.60 = 55,598.88/x
  3. Step 3: Cross multiply
    169,485.21x = 254,242.60 × 55,598.88
  4. Step 4: Simplify right side
    169,485.21x = 14,135,602,398.08
  5. Step 5: Solve for x
    x = 14,135,602,398.08/169,485.21
  6. Step 6: Final answer
    x = 83,403.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.