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Finding the Fourth Proportional to 123,090.10, 184,525.80 and 73,117.15

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Solution

The fourth proportional to 123,090.10, 184,525.80 and 73,117.15 is: 109,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,090.10 : 184,525.80 = 73,117.15 : x
  2. Step 2: Convert to fraction form
    123,090.10/184,525.80 = 73,117.15/x
  3. Step 3: Cross multiply
    123,090.10x = 184,525.80 × 73,117.15
  4. Step 4: Simplify right side
    123,090.10x = 13,492,000,597.47
  5. Step 5: Solve for x
    x = 13,492,000,597.47/123,090.10
  6. Step 6: Final answer
    x = 109,610.77

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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.