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Finding the Fourth Proportional to 192,441.60, 288,695.52 and 66,075.84

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Solution

The fourth proportional to 192,441.60, 288,695.52 and 66,075.84 is: 99,125.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,441.60 : 288,695.52 = 66,075.84 : x
  2. Step 2: Convert to fraction form
    192,441.60/288,695.52 = 66,075.84/x
  3. Step 3: Cross multiply
    192,441.60x = 288,695.52 × 66,075.84
  4. Step 4: Simplify right side
    192,441.60x = 19,075,798,988.24
  5. Step 5: Solve for x
    x = 19,075,798,988.24/192,441.60
  6. Step 6: Final answer
    x = 99,125.13

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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.