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Finding the Fourth Proportional to 160,243.96, 240,421.42 and 60,432.78

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Solution

The fourth proportional to 160,243.96, 240,421.42 and 60,432.78 is: 90,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,243.96 : 240,421.42 = 60,432.78 : x
  2. Step 2: Convert to fraction form
    160,243.96/240,421.42 = 60,432.78/x
  3. Step 3: Cross multiply
    160,243.96x = 240,421.42 × 60,432.78
  4. Step 4: Simplify right side
    160,243.96x = 14,529,334,782.15
  5. Step 5: Solve for x
    x = 14,529,334,782.15/160,243.96
  6. Step 6: Final answer
    x = 90,670.09

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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.