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Finding the Fourth Proportional to 169,884.40, 234,420.10 and 93,390.88

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Solution

The fourth proportional to 169,884.40, 234,420.10 and 93,390.88 is: 128,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,884.40 : 234,420.10 = 93,390.88 : x
  2. Step 2: Convert to fraction form
    169,884.40/234,420.10 = 93,390.88/x
  3. Step 3: Cross multiply
    169,884.40x = 234,420.10 × 93,390.88
  4. Step 4: Simplify right side
    169,884.40x = 21,892,699,428.69
  5. Step 5: Solve for x
    x = 21,892,699,428.69/169,884.40
  6. Step 6: Final answer
    x = 128,868.22

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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.