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Finding the Fourth Proportional to 163,842.14, 245,858.74 and 69,066.52

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Solution

The fourth proportional to 163,842.14, 245,858.74 and 69,066.52 is: 103,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,842.14 : 245,858.74 = 69,066.52 : x
  2. Step 2: Convert to fraction form
    163,842.14/245,858.74 = 69,066.52/x
  3. Step 3: Cross multiply
    163,842.14x = 245,858.74 × 69,066.52
  4. Step 4: Simplify right side
    163,842.14x = 16,980,607,583.38
  5. Step 5: Solve for x
    x = 16,980,607,583.38/163,842.14
  6. Step 6: Final answer
    x = 103,640.05

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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.