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Finding the Fourth Proportional to 93,985.88, 129,700.58 and 51,544.58

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Solution

The fourth proportional to 93,985.88, 129,700.58 and 51,544.58 is: 71,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,985.88 : 129,700.58 = 51,544.58 : x
  2. Step 2: Convert to fraction form
    93,985.88/129,700.58 = 51,544.58/x
  3. Step 3: Cross multiply
    93,985.88x = 129,700.58 × 51,544.58
  4. Step 4: Simplify right side
    93,985.88x = 6,685,361,015.63
  5. Step 5: Solve for x
    x = 6,685,361,015.63/93,985.88
  6. Step 6: Final answer
    x = 71,131.55

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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.