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Finding the Fourth Proportional to 328,075.18, 452,743.78 and 177,172.18

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Solution

The fourth proportional to 328,075.18, 452,743.78 and 177,172.18 is: 244,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,075.18 : 452,743.78 = 177,172.18 : x
  2. Step 2: Convert to fraction form
    328,075.18/452,743.78 = 177,172.18/x
  3. Step 3: Cross multiply
    328,075.18x = 452,743.78 × 177,172.18
  4. Step 4: Simplify right side
    328,075.18x = 80,213,602,484.04
  5. Step 5: Solve for x
    x = 80,213,602,484.04/328,075.18
  6. Step 6: Final answer
    x = 244,497.63

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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.