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Finding the Fourth Proportional to 358,078.01, 537,002.19 and 118,138.14

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Solution

The fourth proportional to 358,078.01, 537,002.19 and 118,138.14 is: 177,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,078.01 : 537,002.19 = 118,138.14 : x
  2. Step 2: Convert to fraction form
    358,078.01/537,002.19 = 118,138.14/x
  3. Step 3: Cross multiply
    358,078.01x = 537,002.19 × 118,138.14
  4. Step 4: Simplify right side
    358,078.01x = 63,440,439,902.53
  5. Step 5: Solve for x
    x = 63,440,439,902.53/358,078.01
  6. Step 6: Final answer
    x = 177,169.33

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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.