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Finding the Fourth Proportional to 156,777.72, 235,205.64 and 45,969.72

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Solution

The fourth proportional to 156,777.72, 235,205.64 and 45,969.72 is: 68,966.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,777.72 : 235,205.64 = 45,969.72 : x
  2. Step 2: Convert to fraction form
    156,777.72/235,205.64 = 45,969.72/x
  3. Step 3: Cross multiply
    156,777.72x = 235,205.64 × 45,969.72
  4. Step 4: Simplify right side
    156,777.72x = 10,812,337,413.22
  5. Step 5: Solve for x
    x = 10,812,337,413.22/156,777.72
  6. Step 6: Final answer
    x = 68,966.03

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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.