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Finding the Fourth Proportional to 167,113.51, 230,646.12 and 99,167.95

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Solution

The fourth proportional to 167,113.51, 230,646.12 and 99,167.95 is: 136,869.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,113.51 : 230,646.12 = 99,167.95 : x
  2. Step 2: Convert to fraction form
    167,113.51/230,646.12 = 99,167.95/x
  3. Step 3: Cross multiply
    167,113.51x = 230,646.12 × 99,167.95
  4. Step 4: Simplify right side
    167,113.51x = 22,872,701,742.62
  5. Step 5: Solve for x
    x = 22,872,701,742.62/167,113.51
  6. Step 6: Final answer
    x = 136,869.26

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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.