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Finding the Fourth Proportional to 200,094.20, 299,485.20 and 155,479.40

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Solution

The fourth proportional to 200,094.20, 299,485.20 and 155,479.40 is: 232,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,094.20 : 299,485.20 = 155,479.40 : x
  2. Step 2: Convert to fraction form
    200,094.20/299,485.20 = 155,479.40/x
  3. Step 3: Cross multiply
    200,094.20x = 299,485.20 × 155,479.40
  4. Step 4: Simplify right side
    200,094.20x = 46,563,779,204.88
  5. Step 5: Solve for x
    x = 46,563,779,204.88/200,094.20
  6. Step 6: Final answer
    x = 232,709.29

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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.