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Finding the Fourth Proportional to 287,750.53, 431,451.93 and 114,668.89

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Solution

The fourth proportional to 287,750.53, 431,451.93 and 114,668.89 is: 171,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,750.53 : 431,451.93 = 114,668.89 : x
  2. Step 2: Convert to fraction form
    287,750.53/431,451.93 = 114,668.89/x
  3. Step 3: Cross multiply
    287,750.53x = 431,451.93 × 114,668.89
  4. Step 4: Simplify right side
    287,750.53x = 49,474,113,252.84
  5. Step 5: Solve for x
    x = 49,474,113,252.84/287,750.53
  6. Step 6: Final answer
    x = 171,934.05

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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.