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Finding the Fourth Proportional to 169,860.80, 234,373.76 and 98,214.72

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Solution

The fourth proportional to 169,860.80, 234,373.76 and 98,214.72 is: 135,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,860.80 : 234,373.76 = 98,214.72 : x
  2. Step 2: Convert to fraction form
    169,860.80/234,373.76 = 98,214.72/x
  3. Step 3: Cross multiply
    169,860.80x = 234,373.76 × 98,214.72
  4. Step 4: Simplify right side
    169,860.80x = 23,018,953,213.75
  5. Step 5: Solve for x
    x = 23,018,953,213.75/169,860.80
  6. Step 6: Final answer
    x = 135,516.57

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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.