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Finding the Fourth Proportional to 163,869.84, 245,809.44 and 89,025.84

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Solution

The fourth proportional to 163,869.84, 245,809.44 and 89,025.84 is: 133,541.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,869.84 : 245,809.44 = 89,025.84 : x
  2. Step 2: Convert to fraction form
    163,869.84/245,809.44 = 89,025.84/x
  3. Step 3: Cross multiply
    163,869.84x = 245,809.44 × 89,025.84
  4. Step 4: Simplify right side
    163,869.84x = 21,883,391,875.93
  5. Step 5: Solve for x
    x = 21,883,391,875.93/163,869.84
  6. Step 6: Final answer
    x = 133,541.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.