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Finding the Fourth Proportional to 316,854, 437,190.48 and 187,833.18

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Solution

The fourth proportional to 316,854, 437,190.48 and 187,833.18 is: 259,169.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,854 : 437,190.48 = 187,833.18 : x
  2. Step 2: Convert to fraction form
    316,854/437,190.48 = 187,833.18/x
  3. Step 3: Cross multiply
    316,854x = 437,190.48 × 187,833.18
  4. Step 4: Simplify right side
    316,854x = 82,118,878,124.13
  5. Step 5: Solve for x
    x = 82,118,878,124.13/316,854
  6. Step 6: Final answer
    x = 259,169.45

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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.