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Finding the Fourth Proportional to 189,737.55, 284,698.59 and 89,778.67

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Solution

The fourth proportional to 189,737.55, 284,698.59 and 89,778.67 is: 134,711.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,737.55 : 284,698.59 = 89,778.67 : x
  2. Step 2: Convert to fraction form
    189,737.55/284,698.59 = 89,778.67/x
  3. Step 3: Cross multiply
    189,737.55x = 284,698.59 × 89,778.67
  4. Step 4: Simplify right side
    189,737.55x = 25,559,860,761.08
  5. Step 5: Solve for x
    x = 25,559,860,761.08/189,737.55
  6. Step 6: Final answer
    x = 134,711.66

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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.