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Finding the Fourth Proportional to 211,489.98, 291,866.88 and 116,005.58

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Solution

The fourth proportional to 211,489.98, 291,866.88 and 116,005.58 is: 160,093.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,489.98 : 291,866.88 = 116,005.58 : x
  2. Step 2: Convert to fraction form
    211,489.98/291,866.88 = 116,005.58/x
  3. Step 3: Cross multiply
    211,489.98x = 291,866.88 × 116,005.58
  4. Step 4: Simplify right side
    211,489.98x = 33,858,184,947.84
  5. Step 5: Solve for x
    x = 33,858,184,947.84/211,489.98
  6. Step 6: Final answer
    x = 160,093.57

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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.