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Finding the Fourth Proportional to 176,938.70, 265,406.42 and 71,732.66

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Solution

The fourth proportional to 176,938.70, 265,406.42 and 71,732.66 is: 107,598.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,938.70 : 265,406.42 = 71,732.66 : x
  2. Step 2: Convert to fraction form
    176,938.70/265,406.42 = 71,732.66/x
  3. Step 3: Cross multiply
    176,938.70x = 265,406.42 × 71,732.66
  4. Step 4: Simplify right side
    176,938.70x = 19,038,307,339.98
  5. Step 5: Solve for x
    x = 19,038,307,339.98/176,938.70
  6. Step 6: Final answer
    x = 107,598.33

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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.