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Finding the Fourth Proportional to 118,803.76, 178,190.76 and 38,835.02

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Solution

The fourth proportional to 118,803.76, 178,190.76 and 38,835.02 is: 58,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,803.76 : 178,190.76 = 38,835.02 : x
  2. Step 2: Convert to fraction form
    118,803.76/178,190.76 = 38,835.02/x
  3. Step 3: Cross multiply
    118,803.76x = 178,190.76 × 38,835.02
  4. Step 4: Simplify right side
    118,803.76x = 6,920,042,319.52
  5. Step 5: Solve for x
    x = 6,920,042,319.52/118,803.76
  6. Step 6: Final answer
    x = 58,247.67

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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.