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Finding the Fourth Proportional to 192,510.81, 288,807.39 and 57,585.45

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Solution

The fourth proportional to 192,510.81, 288,807.39 and 57,585.45 is: 86,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,510.81 : 288,807.39 = 57,585.45 : x
  2. Step 2: Convert to fraction form
    192,510.81/288,807.39 = 57,585.45/x
  3. Step 3: Cross multiply
    192,510.81x = 288,807.39 × 57,585.45
  4. Step 4: Simplify right side
    192,510.81x = 16,631,103,516.48
  5. Step 5: Solve for x
    x = 16,631,103,516.48/192,510.81
  6. Step 6: Final answer
    x = 86,390.49

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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.