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Finding the Fourth Proportional to 249,161.01, 373,801.05 and 80,681.52

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Solution

The fourth proportional to 249,161.01, 373,801.05 and 80,681.52 is: 121,041.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,161.01 : 373,801.05 = 80,681.52 : x
  2. Step 2: Convert to fraction form
    249,161.01/373,801.05 = 80,681.52/x
  3. Step 3: Cross multiply
    249,161.01x = 373,801.05 × 80,681.52
  4. Step 4: Simplify right side
    249,161.01x = 30,158,836,891.60
  5. Step 5: Solve for x
    x = 30,158,836,891.60/249,161.01
  6. Step 6: Final answer
    x = 121,041.56

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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.