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Finding the Fourth Proportional to 188,357.81, 282,505.66 and 61,999.70

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Solution

The fourth proportional to 188,357.81, 282,505.66 and 61,999.70 is: 92,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,357.81 : 282,505.66 = 61,999.70 : x
  2. Step 2: Convert to fraction form
    188,357.81/282,505.66 = 61,999.70/x
  3. Step 3: Cross multiply
    188,357.81x = 282,505.66 × 61,999.70
  4. Step 4: Simplify right side
    188,357.81x = 17,515,264,600.77
  5. Step 5: Solve for x
    x = 17,515,264,600.77/188,357.81
  6. Step 6: Final answer
    x = 92,989.32

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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.