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Finding the Fourth Proportional to 355,069.80, 532,907.10 and 144,858.60

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Solution

The fourth proportional to 355,069.80, 532,907.10 and 144,858.60 is: 217,411.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,069.80 : 532,907.10 = 144,858.60 : x
  2. Step 2: Convert to fraction form
    355,069.80/532,907.10 = 144,858.60/x
  3. Step 3: Cross multiply
    355,069.80x = 532,907.10 × 144,858.60
  4. Step 4: Simplify right side
    355,069.80x = 77,196,176,436.06
  5. Step 5: Solve for x
    x = 77,196,176,436.06/355,069.80
  6. Step 6: Final answer
    x = 217,411.27

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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.