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Finding the Fourth Proportional to 194,817.60, 292,226.40 and 70,142.40

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Solution

The fourth proportional to 194,817.60, 292,226.40 and 70,142.40 is: 105,213.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,817.60 : 292,226.40 = 70,142.40 : x
  2. Step 2: Convert to fraction form
    194,817.60/292,226.40 = 70,142.40/x
  3. Step 3: Cross multiply
    194,817.60x = 292,226.40 × 70,142.40
  4. Step 4: Simplify right side
    194,817.60x = 20,497,461,039.36
  5. Step 5: Solve for x
    x = 20,497,461,039.36/194,817.60
  6. Step 6: Final answer
    x = 105,213.60

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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.