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Finding the Fourth Proportional to 268,304.91, 370,259.56 and 153,582.90

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Solution

The fourth proportional to 268,304.91, 370,259.56 and 153,582.90 is: 211,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,304.91 : 370,259.56 = 153,582.90 : x
  2. Step 2: Convert to fraction form
    268,304.91/370,259.56 = 153,582.90/x
  3. Step 3: Cross multiply
    268,304.91x = 370,259.56 × 153,582.90
  4. Step 4: Simplify right side
    268,304.91x = 56,865,536,999.84
  5. Step 5: Solve for x
    x = 56,865,536,999.84/268,304.91
  6. Step 6: Final answer
    x = 211,943.71

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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.