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Finding the Fourth Proportional to 78,951.03, 118,412.03 and 34,569.51

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Solution

The fourth proportional to 78,951.03, 118,412.03 and 34,569.51 is: 51,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,951.03 : 118,412.03 = 34,569.51 : x
  2. Step 2: Convert to fraction form
    78,951.03/118,412.03 = 34,569.51/x
  3. Step 3: Cross multiply
    78,951.03x = 118,412.03 × 34,569.51
  4. Step 4: Simplify right side
    78,951.03x = 4,093,445,682.36
  5. Step 5: Solve for x
    x = 4,093,445,682.36/78,951.03
  6. Step 6: Final answer
    x = 51,847.91

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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.