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Finding the Fourth Proportional to 230,307.59, 345,561.78 and 80,655.23

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Solution

The fourth proportional to 230,307.59, 345,561.78 and 80,655.23 is: 121,018.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,307.59 : 345,561.78 = 80,655.23 : x
  2. Step 2: Convert to fraction form
    230,307.59/345,561.78 = 80,655.23/x
  3. Step 3: Cross multiply
    230,307.59x = 345,561.78 × 80,655.23
  4. Step 4: Simplify right side
    230,307.59x = 27,871,364,845.11
  5. Step 5: Solve for x
    x = 27,871,364,845.11/230,307.59
  6. Step 6: Final answer
    x = 121,018.00

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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.