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Finding the Fourth Proportional to 79,159.51, 118,724.41 and 39,706.03

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Solution

The fourth proportional to 79,159.51, 118,724.41 and 39,706.03 is: 59,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,159.51 : 118,724.41 = 39,706.03 : x
  2. Step 2: Convert to fraction form
    79,159.51/118,724.41 = 39,706.03/x
  3. Step 3: Cross multiply
    79,159.51x = 118,724.41 × 39,706.03
  4. Step 4: Simplify right side
    79,159.51x = 4,714,074,985.19
  5. Step 5: Solve for x
    x = 4,714,074,985.19/79,159.51
  6. Step 6: Final answer
    x = 59,551.59

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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.