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Finding the Fourth Proportional to 283,445.60, 425,324.70 and 157,069.10

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Solution

The fourth proportional to 283,445.60, 425,324.70 and 157,069.10 is: 235,690.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,445.60 : 425,324.70 = 157,069.10 : x
  2. Step 2: Convert to fraction form
    283,445.60/425,324.70 = 157,069.10/x
  3. Step 3: Cross multiply
    283,445.60x = 425,324.70 × 157,069.10
  4. Step 4: Simplify right side
    283,445.60x = 66,805,368,900.08
  5. Step 5: Solve for x
    x = 66,805,368,900.08/283,445.60
  6. Step 6: Final answer
    x = 235,690.27

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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.