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Finding the Fourth Proportional to 186,990,358.70, 280,472,235.32 and 57,584,475.20

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Solution

The fourth proportional to 186,990,358.70, 280,472,235.32 and 57,584,475.20 is: 86,372,616.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,990,358.70 : 280,472,235.32 = 57,584,475.20 : x
  2. Step 2: Convert to fraction form
    186,990,358.70/280,472,235.32 = 57,584,475.20/x
  3. Step 3: Cross multiply
    186,990,358.70x = 280,472,235.32 × 57,584,475.20
  4. Step 4: Simplify right side
    186,990,358.70x = 16,150,846,477,382,820
  5. Step 5: Solve for x
    x = 16,150,846,477,382,820/186,990,358.70
  6. Step 6: Final answer
    x = 86,372,616.16

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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.