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Finding the Fourth Proportional to 163,019.11, 244,529.50 and 74,210.50

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Solution

The fourth proportional to 163,019.11, 244,529.50 and 74,210.50 is: 111,316.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,019.11 : 244,529.50 = 74,210.50 : x
  2. Step 2: Convert to fraction form
    163,019.11/244,529.50 = 74,210.50/x
  3. Step 3: Cross multiply
    163,019.11x = 244,529.50 × 74,210.50
  4. Step 4: Simplify right side
    163,019.11x = 18,146,656,459.75
  5. Step 5: Solve for x
    x = 18,146,656,459.75/163,019.11
  6. Step 6: Final answer
    x = 111,316.13

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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.