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Finding the Fourth Proportional to 235,431.90, 353,147.85 and 160,782.30

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Solution

The fourth proportional to 235,431.90, 353,147.85 and 160,782.30 is: 241,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,431.90 : 353,147.85 = 160,782.30 : x
  2. Step 2: Convert to fraction form
    235,431.90/353,147.85 = 160,782.30/x
  3. Step 3: Cross multiply
    235,431.90x = 353,147.85 × 160,782.30
  4. Step 4: Simplify right side
    235,431.90x = 56,779,923,563.06
  5. Step 5: Solve for x
    x = 56,779,923,563.06/235,431.90
  6. Step 6: Final answer
    x = 241,173.45

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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.