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Finding the Fourth Proportional to 180,555.81, 249,145.81 and 104,074.02

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Solution

The fourth proportional to 180,555.81, 249,145.81 and 104,074.02 is: 143,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,555.81 : 249,145.81 = 104,074.02 : x
  2. Step 2: Convert to fraction form
    180,555.81/249,145.81 = 104,074.02/x
  3. Step 3: Cross multiply
    180,555.81x = 249,145.81 × 104,074.02
  4. Step 4: Simplify right side
    180,555.81x = 25,929,606,012.86
  5. Step 5: Solve for x
    x = 25,929,606,012.86/180,555.81
  6. Step 6: Final answer
    x = 143,609.92

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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.