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Finding the Fourth Proportional to 180,855.52, 249,579.39 and 100,283.02

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Solution

The fourth proportional to 180,855.52, 249,579.39 and 100,283.02 is: 138,389.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,855.52 : 249,579.39 = 100,283.02 : x
  2. Step 2: Convert to fraction form
    180,855.52/249,579.39 = 100,283.02/x
  3. Step 3: Cross multiply
    180,855.52x = 249,579.39 × 100,283.02
  4. Step 4: Simplify right side
    180,855.52x = 25,028,574,958.96
  5. Step 5: Solve for x
    x = 25,028,574,958.96/180,855.52
  6. Step 6: Final answer
    x = 138,389.89

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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.