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Finding the Fourth Proportional to 169,918, 234,487.12 and 94,466.50

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Solution

The fourth proportional to 169,918, 234,487.12 and 94,466.50 is: 130,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,918 : 234,487.12 = 94,466.50 : x
  2. Step 2: Convert to fraction form
    169,918/234,487.12 = 94,466.50/x
  3. Step 3: Cross multiply
    169,918x = 234,487.12 × 94,466.50
  4. Step 4: Simplify right side
    169,918x = 22,151,177,521.48
  5. Step 5: Solve for x
    x = 22,151,177,521.48/169,918
  6. Step 6: Final answer
    x = 130,363.93

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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.