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Finding the Fourth Proportional to 352,957.68, 487,075.23 and 191,813.31

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Solution

The fourth proportional to 352,957.68, 487,075.23 and 191,813.31 is: 264,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,957.68 : 487,075.23 = 191,813.31 : x
  2. Step 2: Convert to fraction form
    352,957.68/487,075.23 = 191,813.31/x
  3. Step 3: Cross multiply
    352,957.68x = 487,075.23 × 191,813.31
  4. Step 4: Simplify right side
    352,957.68x = 93,427,512,085.31
  5. Step 5: Solve for x
    x = 93,427,512,085.31/352,957.68
  6. Step 6: Final answer
    x = 264,698.91

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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.