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Finding the Fourth Proportional to 329,075.40, 493,510.95 and 118,686

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Solution

The fourth proportional to 329,075.40, 493,510.95 and 118,686 is: 177,992.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,075.40 : 493,510.95 = 118,686 : x
  2. Step 2: Convert to fraction form
    329,075.40/493,510.95 = 118,686/x
  3. Step 3: Cross multiply
    329,075.40x = 493,510.95 × 118,686
  4. Step 4: Simplify right side
    329,075.40x = 58,572,840,611.70
  5. Step 5: Solve for x
    x = 58,572,840,611.70/329,075.40
  6. Step 6: Final answer
    x = 177,992.16

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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.