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Finding the Fourth Proportional to 136,497.63, 204,762.85 and 129,032.67

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Solution

The fourth proportional to 136,497.63, 204,762.85 and 129,032.67 is: 193,564.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,497.63 : 204,762.85 = 129,032.67 : x
  2. Step 2: Convert to fraction form
    136,497.63/204,762.85 = 129,032.67/x
  3. Step 3: Cross multiply
    136,497.63x = 204,762.85 × 129,032.67
  4. Step 4: Simplify right side
    136,497.63x = 26,421,096,929.73
  5. Step 5: Solve for x
    x = 26,421,096,929.73/136,497.63
  6. Step 6: Final answer
    x = 193,564.51

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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.