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Finding the Fourth Proportional to 194,291.40, 291,350.70 and 89,142.60

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Solution

The fourth proportional to 194,291.40, 291,350.70 and 89,142.60 is: 133,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,291.40 : 291,350.70 = 89,142.60 : x
  2. Step 2: Convert to fraction form
    194,291.40/291,350.70 = 89,142.60/x
  3. Step 3: Cross multiply
    194,291.40x = 291,350.70 × 89,142.60
  4. Step 4: Simplify right side
    194,291.40x = 25,971,758,909.82
  5. Step 5: Solve for x
    x = 25,971,758,909.82/194,291.40
  6. Step 6: Final answer
    x = 133,674.26

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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.