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Finding the Fourth Proportional to 188,462.70, 260,075.61 and 103,577.94

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Solution

The fourth proportional to 188,462.70, 260,075.61 and 103,577.94 is: 142,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,462.70 : 260,075.61 = 103,577.94 : x
  2. Step 2: Convert to fraction form
    188,462.70/260,075.61 = 103,577.94/x
  3. Step 3: Cross multiply
    188,462.70x = 260,075.61 × 103,577.94
  4. Step 4: Simplify right side
    188,462.70x = 26,938,095,928.04
  5. Step 5: Solve for x
    x = 26,938,095,928.04/188,462.70
  6. Step 6: Final answer
    x = 142,935.95

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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.