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Finding the Fourth Proportional to 165,578.87, 248,386.07 and 70,818.89

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Solution

The fourth proportional to 165,578.87, 248,386.07 and 70,818.89 is: 106,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,578.87 : 248,386.07 = 70,818.89 : x
  2. Step 2: Convert to fraction form
    165,578.87/248,386.07 = 70,818.89/x
  3. Step 3: Cross multiply
    165,578.87x = 248,386.07 × 70,818.89
  4. Step 4: Simplify right side
    165,578.87x = 17,590,424,172.84
  5. Step 5: Solve for x
    x = 17,590,424,172.84/165,578.87
  6. Step 6: Final answer
    x = 106,235.93

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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.