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Finding the Fourth Proportional to 329,075.92, 493,511.70 and 118,686.52

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Solution

The fourth proportional to 329,075.92, 493,511.70 and 118,686.52 is: 177,992.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,075.92 : 493,511.70 = 118,686.52 : x
  2. Step 2: Convert to fraction form
    329,075.92/493,511.70 = 118,686.52/x
  3. Step 3: Cross multiply
    329,075.92x = 493,511.70 × 118,686.52
  4. Step 4: Simplify right side
    329,075.92x = 58,573,186,252.28
  5. Step 5: Solve for x
    x = 58,573,186,252.28/329,075.92
  6. Step 6: Final answer
    x = 177,992.93

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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.