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Finding the Fourth Proportional to 372,512.32, 514,051.74 and 211,363.90

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Solution

The fourth proportional to 372,512.32, 514,051.74 and 211,363.90 is: 291,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,512.32 : 514,051.74 = 211,363.90 : x
  2. Step 2: Convert to fraction form
    372,512.32/514,051.74 = 211,363.90/x
  3. Step 3: Cross multiply
    372,512.32x = 514,051.74 × 211,363.90
  4. Step 4: Simplify right side
    372,512.32x = 108,651,980,568.19
  5. Step 5: Solve for x
    x = 108,651,980,568.19/372,512.32
  6. Step 6: Final answer
    x = 291,673.52

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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.