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Finding the Fourth Proportional to 193,810.88, 290,713.44 and 53,566.40

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Solution

The fourth proportional to 193,810.88, 290,713.44 and 53,566.40 is: 80,348.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,810.88 : 290,713.44 = 53,566.40 : x
  2. Step 2: Convert to fraction form
    193,810.88/290,713.44 = 53,566.40/x
  3. Step 3: Cross multiply
    193,810.88x = 290,713.44 × 53,566.40
  4. Step 4: Simplify right side
    193,810.88x = 15,572,472,412.42
  5. Step 5: Solve for x
    x = 15,572,472,412.42/193,810.88
  6. Step 6: Final answer
    x = 80,348.80

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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.