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Finding the Fourth Proportional to 88,290.48, 121,841.36 and 48,004.64

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Solution

The fourth proportional to 88,290.48, 121,841.36 and 48,004.64 is: 66,246.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,290.48 : 121,841.36 = 48,004.64 : x
  2. Step 2: Convert to fraction form
    88,290.48/121,841.36 = 48,004.64/x
  3. Step 3: Cross multiply
    88,290.48x = 121,841.36 × 48,004.64
  4. Step 4: Simplify right side
    88,290.48x = 5,848,950,623.91
  5. Step 5: Solve for x
    x = 5,848,950,623.91/88,290.48
  6. Step 6: Final answer
    x = 66,246.67

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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.