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Finding the Fourth Proportional to 195,381.80, 293,072.70 and 193,999.40

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Solution

The fourth proportional to 195,381.80, 293,072.70 and 193,999.40 is: 290,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,381.80 : 293,072.70 = 193,999.40 : x
  2. Step 2: Convert to fraction form
    195,381.80/293,072.70 = 193,999.40/x
  3. Step 3: Cross multiply
    195,381.80x = 293,072.70 × 193,999.40
  4. Step 4: Simplify right side
    195,381.80x = 56,855,927,956.38
  5. Step 5: Solve for x
    x = 56,855,927,956.38/195,381.80
  6. Step 6: Final answer
    x = 290,999.10

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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.