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Finding the Fourth Proportional to 235,885.60, 353,828.40 and 156,743.20

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Solution

The fourth proportional to 235,885.60, 353,828.40 and 156,743.20 is: 235,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,885.60 : 353,828.40 = 156,743.20 : x
  2. Step 2: Convert to fraction form
    235,885.60/353,828.40 = 156,743.20/x
  3. Step 3: Cross multiply
    235,885.60x = 353,828.40 × 156,743.20
  4. Step 4: Simplify right side
    235,885.60x = 55,460,195,666.88
  5. Step 5: Solve for x
    x = 55,460,195,666.88/235,885.60
  6. Step 6: Final answer
    x = 235,114.80

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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.