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Finding the Fourth Proportional to 180,940.78, 249,709.60 and 104,473.88

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Solution

The fourth proportional to 180,940.78, 249,709.60 and 104,473.88 is: 144,180.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,940.78 : 249,709.60 = 104,473.88 : x
  2. Step 2: Convert to fraction form
    180,940.78/249,709.60 = 104,473.88/x
  3. Step 3: Cross multiply
    180,940.78x = 249,709.60 × 104,473.88
  4. Step 4: Simplify right side
    180,940.78x = 26,088,130,785.25
  5. Step 5: Solve for x
    x = 26,088,130,785.25/180,940.78
  6. Step 6: Final answer
    x = 144,180.49

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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.