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Finding the Fourth Proportional to 163,334.80, 245,009.40 and 92,256.40

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Solution

The fourth proportional to 163,334.80, 245,009.40 and 92,256.40 is: 138,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,334.80 : 245,009.40 = 92,256.40 : x
  2. Step 2: Convert to fraction form
    163,334.80/245,009.40 = 92,256.40/x
  3. Step 3: Cross multiply
    163,334.80x = 245,009.40 × 92,256.40
  4. Step 4: Simplify right side
    163,334.80x = 22,603,685,210.16
  5. Step 5: Solve for x
    x = 22,603,685,210.16/163,334.80
  6. Step 6: Final answer
    x = 138,388.67

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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.