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Finding the Fourth Proportional to 192,320.34, 288,449.55 and 65,955.48

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Solution

The fourth proportional to 192,320.34, 288,449.55 and 65,955.48 is: 98,922.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,320.34 : 288,449.55 = 65,955.48 : x
  2. Step 2: Convert to fraction form
    192,320.34/288,449.55 = 65,955.48/x
  3. Step 3: Cross multiply
    192,320.34x = 288,449.55 × 65,955.48
  4. Step 4: Simplify right side
    192,320.34x = 19,024,828,526.03
  5. Step 5: Solve for x
    x = 19,024,828,526.03/192,320.34
  6. Step 6: Final answer
    x = 98,922.60

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1.5x scale

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.