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Finding the Fourth Proportional to 118,833.36, 178,289.75 and 38,874.98

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Solution

The fourth proportional to 118,833.36, 178,289.75 and 38,874.98 is: 58,325.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,833.36 : 178,289.75 = 38,874.98 : x
  2. Step 2: Convert to fraction form
    118,833.36/178,289.75 = 38,874.98/x
  3. Step 3: Cross multiply
    118,833.36x = 178,289.75 × 38,874.98
  4. Step 4: Simplify right side
    118,833.36x = 6,931,010,465.46
  5. Step 5: Solve for x
    x = 6,931,010,465.46/118,833.36
  6. Step 6: Final answer
    x = 58,325.46

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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.