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Finding the Fourth Proportional to 210,851.80, 316,277.70 and 193,744.60

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Solution

The fourth proportional to 210,851.80, 316,277.70 and 193,744.60 is: 290,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,851.80 : 316,277.70 = 193,744.60 : x
  2. Step 2: Convert to fraction form
    210,851.80/316,277.70 = 193,744.60/x
  3. Step 3: Cross multiply
    210,851.80x = 316,277.70 × 193,744.60
  4. Step 4: Simplify right side
    210,851.80x = 61,277,096,475.42
  5. Step 5: Solve for x
    x = 61,277,096,475.42/210,851.80
  6. Step 6: Final answer
    x = 290,616.90

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1.5x scale

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.