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Finding the Fourth Proportional to 194,308.40, 291,462.60 and 111,210.80

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Solution

The fourth proportional to 194,308.40, 291,462.60 and 111,210.80 is: 166,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,308.40 : 291,462.60 = 111,210.80 : x
  2. Step 2: Convert to fraction form
    194,308.40/291,462.60 = 111,210.80/x
  3. Step 3: Cross multiply
    194,308.40x = 291,462.60 × 111,210.80
  4. Step 4: Simplify right side
    194,308.40x = 32,413,788,916.08
  5. Step 5: Solve for x
    x = 32,413,788,916.08/194,308.40
  6. Step 6: Final answer
    x = 166,816.20

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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.