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Finding the Fourth Proportional to 180,604.28, 249,261.90 and 103,079.99

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Solution

The fourth proportional to 180,604.28, 249,261.90 and 103,079.99 is: 142,266.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,604.28 : 249,261.90 = 103,079.99 : x
  2. Step 2: Convert to fraction form
    180,604.28/249,261.90 = 103,079.99/x
  3. Step 3: Cross multiply
    180,604.28x = 249,261.90 × 103,079.99
  4. Step 4: Simplify right side
    180,604.28x = 25,693,914,159.38
  5. Step 5: Solve for x
    x = 25,693,914,159.38/180,604.28
  6. Step 6: Final answer
    x = 142,266.36

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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.