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Finding the Fourth Proportional to 196,808.63, 271,549.55 and 145,939.01

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Solution

The fourth proportional to 196,808.63, 271,549.55 and 145,939.01 is: 201,361.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,808.63 : 271,549.55 = 145,939.01 : x
  2. Step 2: Convert to fraction form
    196,808.63/271,549.55 = 145,939.01/x
  3. Step 3: Cross multiply
    196,808.63x = 271,549.55 × 145,939.01
  4. Step 4: Simplify right side
    196,808.63x = 39,629,671,763.25
  5. Step 5: Solve for x
    x = 39,629,671,763.25/196,808.63
  6. Step 6: Final answer
    x = 201,361.45

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1.5x scale

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.