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Finding the Fourth Proportional to 216,461.88, 323,107.68 and 190,896.03

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Solution

The fourth proportional to 216,461.88, 323,107.68 and 190,896.03 is: 284,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,461.88 : 323,107.68 = 190,896.03 : x
  2. Step 2: Convert to fraction form
    216,461.88/323,107.68 = 190,896.03/x
  3. Step 3: Cross multiply
    216,461.88x = 323,107.68 × 190,896.03
  4. Step 4: Simplify right side
    216,461.88x = 61,679,974,090.37
  5. Step 5: Solve for x
    x = 61,679,974,090.37/216,461.88
  6. Step 6: Final answer
    x = 284,946.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.