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Finding the Fourth Proportional to 188,951.09, 260,740.54 and 104,068.15

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Solution

The fourth proportional to 188,951.09, 260,740.54 and 104,068.15 is: 143,607.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,951.09 : 260,740.54 = 104,068.15 : x
  2. Step 2: Convert to fraction form
    188,951.09/260,740.54 = 104,068.15/x
  3. Step 3: Cross multiply
    188,951.09x = 260,740.54 × 104,068.15
  4. Step 4: Simplify right side
    188,951.09x = 27,134,784,520.65
  5. Step 5: Solve for x
    x = 27,134,784,520.65/188,951.09
  6. Step 6: Final answer
    x = 143,607.46

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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.