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Finding the Fourth Proportional to 211,300.58, 316,923.12 and 104,643.02

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Solution

The fourth proportional to 211,300.58, 316,923.12 and 104,643.02 is: 156,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,300.58 : 316,923.12 = 104,643.02 : x
  2. Step 2: Convert to fraction form
    211,300.58/316,923.12 = 104,643.02/x
  3. Step 3: Cross multiply
    211,300.58x = 316,923.12 × 104,643.02
  4. Step 4: Simplify right side
    211,300.58x = 33,163,790,800.01
  5. Step 5: Solve for x
    x = 33,163,790,800.01/211,300.58
  6. Step 6: Final answer
    x = 156,950.78

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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.