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Finding the Fourth Proportional to 70,907.63, 97,852.52 and 39,079.49

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Solution

The fourth proportional to 70,907.63, 97,852.52 and 39,079.49 is: 53,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,907.63 : 97,852.52 = 39,079.49 : x
  2. Step 2: Convert to fraction form
    70,907.63/97,852.52 = 39,079.49/x
  3. Step 3: Cross multiply
    70,907.63x = 97,852.52 × 39,079.49
  4. Step 4: Simplify right side
    70,907.63x = 3,824,026,185.25
  5. Step 5: Solve for x
    x = 3,824,026,185.25/70,907.63
  6. Step 6: Final answer
    x = 53,929.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.