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Finding the Fourth Proportional to 93,485.88, 129,005.40 and 51,043.44

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Solution

The fourth proportional to 93,485.88, 129,005.40 and 51,043.44 is: 70,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,485.88 : 129,005.40 = 51,043.44 : x
  2. Step 2: Convert to fraction form
    93,485.88/129,005.40 = 51,043.44/x
  3. Step 3: Cross multiply
    93,485.88x = 129,005.40 × 51,043.44
  4. Step 4: Simplify right side
    93,485.88x = 6,584,879,394.58
  5. Step 5: Solve for x
    x = 6,584,879,394.58/93,485.88
  6. Step 6: Final answer
    x = 70,437.15

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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.