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Finding the Fourth Proportional to 312,094.60, 430,690.39 and 176,157.07

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Solution

The fourth proportional to 312,094.60, 430,690.39 and 176,157.07 is: 243,096.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,094.60 : 430,690.39 = 176,157.07 : x
  2. Step 2: Convert to fraction form
    312,094.60/430,690.39 = 176,157.07/x
  3. Step 3: Cross multiply
    312,094.60x = 430,690.39 × 176,157.07
  4. Step 4: Simplify right side
    312,094.60x = 75,869,155,662.44
  5. Step 5: Solve for x
    x = 75,869,155,662.44/312,094.60
  6. Step 6: Final answer
    x = 243,096.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.