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Finding the Fourth Proportional to 169,912, 234,478.84 and 94,460.50

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Solution

The fourth proportional to 169,912, 234,478.84 and 94,460.50 is: 130,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912 : 234,478.84 = 94,460.50 : x
  2. Step 2: Convert to fraction form
    169,912/234,478.84 = 94,460.50/x
  3. Step 3: Cross multiply
    169,912x = 234,478.84 × 94,460.50
  4. Step 4: Simplify right side
    169,912x = 22,148,988,465.82
  5. Step 5: Solve for x
    x = 22,148,988,465.82/169,912
  6. Step 6: Final answer
    x = 130,355.65

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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.