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Finding the Fourth Proportional to 93,574.84, 140,369.40 and 31,245.34

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Solution

The fourth proportional to 93,574.84, 140,369.40 and 31,245.34 is: 46,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,574.84 : 140,369.40 = 31,245.34 : x
  2. Step 2: Convert to fraction form
    93,574.84/140,369.40 = 31,245.34/x
  3. Step 3: Cross multiply
    93,574.84x = 140,369.40 × 31,245.34
  4. Step 4: Simplify right side
    93,574.84x = 4,385,889,628.60
  5. Step 5: Solve for x
    x = 4,385,889,628.60/93,574.84
  6. Step 6: Final answer
    x = 46,870.39

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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.