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Finding the Fourth Proportional to 118,816.79, 178,187.51 and 38,836.67

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Solution

The fourth proportional to 118,816.79, 178,187.51 and 38,836.67 is: 58,242.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,816.79 : 178,187.51 = 38,836.67 : x
  2. Step 2: Convert to fraction form
    118,816.79/178,187.51 = 38,836.67/x
  3. Step 3: Cross multiply
    118,816.79x = 178,187.51 × 38,836.67
  4. Step 4: Simplify right side
    118,816.79x = 6,920,209,329.81
  5. Step 5: Solve for x
    x = 6,920,209,329.81/118,816.79
  6. Step 6: Final answer
    x = 58,242.69

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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.