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Finding the Fourth Proportional to 121,259.00, 181,826.12 and 65,146.38

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Solution

The fourth proportional to 121,259.00, 181,826.12 and 65,146.38 is: 97,686.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,259.00 : 181,826.12 = 65,146.38 : x
  2. Step 2: Convert to fraction form
    121,259.00/181,826.12 = 65,146.38/x
  3. Step 3: Cross multiply
    121,259.00x = 181,826.12 × 65,146.38
  4. Step 4: Simplify right side
    121,259.00x = 11,845,313,670.31
  5. Step 5: Solve for x
    x = 11,845,313,670.31/121,259.00
  6. Step 6: Final answer
    x = 97,686.06

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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.