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Finding the Fourth Proportional to 358,981.77, 495,398.12 and 197,842.67

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Solution

The fourth proportional to 358,981.77, 495,398.12 and 197,842.67 is: 273,024.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,981.77 : 495,398.12 = 197,842.67 : x
  2. Step 2: Convert to fraction form
    358,981.77/495,398.12 = 197,842.67/x
  3. Step 3: Cross multiply
    358,981.77x = 495,398.12 × 197,842.67
  4. Step 4: Simplify right side
    358,981.77x = 98,010,883,307.58
  5. Step 5: Solve for x
    x = 98,010,883,307.58/358,981.77
  6. Step 6: Final answer
    x = 273,024.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.