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Finding the Fourth Proportional to 454,718.74, 681,890.44 and 155,223.47

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Solution

The fourth proportional to 454,718.74, 681,890.44 and 155,223.47 is: 232,771.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,718.74 : 681,890.44 = 155,223.47 : x
  2. Step 2: Convert to fraction form
    454,718.74/681,890.44 = 155,223.47/x
  3. Step 3: Cross multiply
    454,718.74x = 681,890.44 × 155,223.47
  4. Step 4: Simplify right side
    454,718.74x = 105,845,400,256.63
  5. Step 5: Solve for x
    x = 105,845,400,256.63/454,718.74
  6. Step 6: Final answer
    x = 232,771.14

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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.