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Finding the Fourth Proportional to 211,310.33, 316,937.75 and 104,652.77

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Solution

The fourth proportional to 211,310.33, 316,937.75 and 104,652.77 is: 156,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,310.33 : 316,937.75 = 104,652.77 : x
  2. Step 2: Convert to fraction form
    211,310.33/316,937.75 = 104,652.77/x
  3. Step 3: Cross multiply
    211,310.33x = 316,937.75 × 104,652.77
  4. Step 4: Simplify right side
    211,310.33x = 33,168,411,347.11
  5. Step 5: Solve for x
    x = 33,168,411,347.11/211,310.33
  6. Step 6: Final answer
    x = 156,965.41

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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.