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Finding the Fourth Proportional to 183,706.80, 253,497.88 and 103,115.86

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Solution

The fourth proportional to 183,706.80, 253,497.88 and 103,115.86 is: 142,290.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,706.80 : 253,497.88 = 103,115.86 : x
  2. Step 2: Convert to fraction form
    183,706.80/253,497.88 = 103,115.86/x
  3. Step 3: Cross multiply
    183,706.80x = 253,497.88 × 103,115.86
  4. Step 4: Simplify right side
    183,706.80x = 26,139,651,904.38
  5. Step 5: Solve for x
    x = 26,139,651,904.38/183,706.80
  6. Step 6: Final answer
    x = 142,290.06

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1.5x scale

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.