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Finding the Fourth Proportional to 358,118.92, 537,239.58 and 147,641.80

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Solution

The fourth proportional to 358,118.92, 537,239.58 and 147,641.80 is: 221,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,118.92 : 537,239.58 = 147,641.80 : x
  2. Step 2: Convert to fraction form
    358,118.92/537,239.58 = 147,641.80/x
  3. Step 3: Cross multiply
    358,118.92x = 537,239.58 × 147,641.80
  4. Step 4: Simplify right side
    358,118.92x = 79,319,018,622.44
  5. Step 5: Solve for x
    x = 79,319,018,622.44/358,118.92
  6. Step 6: Final answer
    x = 221,487.93

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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.