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Finding the Fourth Proportional to 368,889.80, 553,334.70 and 116,202.20

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Solution

The fourth proportional to 368,889.80, 553,334.70 and 116,202.20 is: 174,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,889.80 : 553,334.70 = 116,202.20 : x
  2. Step 2: Convert to fraction form
    368,889.80/553,334.70 = 116,202.20/x
  3. Step 3: Cross multiply
    368,889.80x = 553,334.70 × 116,202.20
  4. Step 4: Simplify right side
    368,889.80x = 64,298,709,476.34
  5. Step 5: Solve for x
    x = 64,298,709,476.34/368,889.80
  6. Step 6: Final answer
    x = 174,303.30

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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.