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Finding the Fourth Proportional to 227,638.60, 341,457.90 and 156,779.80

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Solution

The fourth proportional to 227,638.60, 341,457.90 and 156,779.80 is: 235,169.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,638.60 : 341,457.90 = 156,779.80 : x
  2. Step 2: Convert to fraction form
    227,638.60/341,457.90 = 156,779.80/x
  3. Step 3: Cross multiply
    227,638.60x = 341,457.90 × 156,779.80
  4. Step 4: Simplify right side
    227,638.60x = 53,533,701,270.42
  5. Step 5: Solve for x
    x = 53,533,701,270.42/227,638.60
  6. Step 6: Final answer
    x = 235,169.70

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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.