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Finding the Fourth Proportional to 185,782.30, 256,378.13 and 100,899.37

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Solution

The fourth proportional to 185,782.30, 256,378.13 and 100,899.37 is: 139,240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,782.30 : 256,378.13 = 100,899.37 : x
  2. Step 2: Convert to fraction form
    185,782.30/256,378.13 = 100,899.37/x
  3. Step 3: Cross multiply
    185,782.30x = 256,378.13 × 100,899.37
  4. Step 4: Simplify right side
    185,782.30x = 25,868,391,798.78
  5. Step 5: Solve for x
    x = 25,868,391,798.78/185,782.30
  6. Step 6: Final answer
    x = 139,240.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.