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Finding the Fourth Proportional to 358,120.92, 537,242.58 and 147,643.80

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Solution

The fourth proportional to 358,120.92, 537,242.58 and 147,643.80 is: 221,490.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,120.92 : 537,242.58 = 147,643.80 : x
  2. Step 2: Convert to fraction form
    358,120.92/537,242.58 = 147,643.80/x
  3. Step 3: Cross multiply
    358,120.92x = 537,242.58 × 147,643.80
  4. Step 4: Simplify right side
    358,120.92x = 79,320,536,033.00
  5. Step 5: Solve for x
    x = 79,320,536,033.00/358,120.92
  6. Step 6: Final answer
    x = 221,490.93

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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.