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Finding the Fourth Proportional to 265,734,247.80, 398,601,371.70 and 162,422,117.40

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Solution

The fourth proportional to 265,734,247.80, 398,601,371.70 and 162,422,117.40 is: 243,633,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,734,247.80 : 398,601,371.70 = 162,422,117.40 : x
  2. Step 2: Convert to fraction form
    265,734,247.80/398,601,371.70 = 162,422,117.40/x
  3. Step 3: Cross multiply
    265,734,247.80x = 398,601,371.70 × 162,422,117.40
  4. Step 4: Simplify right side
    265,734,247.80x = 64,741,678,790,058,440
  5. Step 5: Solve for x
    x = 64,741,678,790,058,440/265,734,247.80
  6. Step 6: Final answer
    x = 243,633,176.10

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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.