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Finding the Fourth Proportional to 249,992.40, 375,065.40 and 197,422.80

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Solution

The fourth proportional to 249,992.40, 375,065.40 and 197,422.80 is: 296,194.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,992.40 : 375,065.40 = 197,422.80 : x
  2. Step 2: Convert to fraction form
    249,992.40/375,065.40 = 197,422.80/x
  3. Step 3: Cross multiply
    249,992.40x = 375,065.40 × 197,422.80
  4. Step 4: Simplify right side
    249,992.40x = 74,046,461,451.12
  5. Step 5: Solve for x
    x = 74,046,461,451.12/249,992.40
  6. Step 6: Final answer
    x = 296,194.85

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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.