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Finding the Fourth Proportional to 148,677.66, 205,345.53 and 97,917.39

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Solution

The fourth proportional to 148,677.66, 205,345.53 and 97,917.39 is: 135,238.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,677.66 : 205,345.53 = 97,917.39 : x
  2. Step 2: Convert to fraction form
    148,677.66/205,345.53 = 97,917.39/x
  3. Step 3: Cross multiply
    148,677.66x = 205,345.53 × 97,917.39
  4. Step 4: Simplify right side
    148,677.66x = 20,106,898,345.77
  5. Step 5: Solve for x
    x = 20,106,898,345.77/148,677.66
  6. Step 6: Final answer
    x = 135,238.19

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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.