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Finding the Fourth Proportional to 93,266, 140,020.88 and 55,384.40

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Solution

The fourth proportional to 93,266, 140,020.88 and 55,384.40 is: 83,148.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,266 : 140,020.88 = 55,384.40 : x
  2. Step 2: Convert to fraction form
    93,266/140,020.88 = 55,384.40/x
  3. Step 3: Cross multiply
    93,266x = 140,020.88 × 55,384.40
  4. Step 4: Simplify right side
    93,266x = 7,754,972,426.27
  5. Step 5: Solve for x
    x = 7,754,972,426.27/93,266
  6. Step 6: Final answer
    x = 83,148.98

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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.