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Finding the Fourth Proportional to 211,988.80, 292,530.40 and 116,493.44

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Solution

The fourth proportional to 211,988.80, 292,530.40 and 116,493.44 is: 160,753.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,988.80 : 292,530.40 = 116,493.44 : x
  2. Step 2: Convert to fraction form
    211,988.80/292,530.40 = 116,493.44/x
  3. Step 3: Cross multiply
    211,988.80x = 292,530.40 × 116,493.44
  4. Step 4: Simplify right side
    211,988.80x = 34,077,872,600.58
  5. Step 5: Solve for x
    x = 34,077,872,600.58/211,988.80
  6. Step 6: Final answer
    x = 160,753.17

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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.