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Finding the Fourth Proportional to 187,858.90, 281,784.47 and 45,704.93

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Solution

The fourth proportional to 187,858.90, 281,784.47 and 45,704.93 is: 68,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,858.90 : 281,784.47 = 45,704.93 : x
  2. Step 2: Convert to fraction form
    187,858.90/281,784.47 = 45,704.93/x
  3. Step 3: Cross multiply
    187,858.90x = 281,784.47 × 45,704.93
  4. Step 4: Simplify right side
    187,858.90x = 12,878,937,838.99
  5. Step 5: Solve for x
    x = 12,878,937,838.99/187,858.90
  6. Step 6: Final answer
    x = 68,556.44

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1.5x scale

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.