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Finding the Fourth Proportional to 249,034.32, 343,620.36 and 148,441.68

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Solution

The fourth proportional to 249,034.32, 343,620.36 and 148,441.68 is: 204,821.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,034.32 : 343,620.36 = 148,441.68 : x
  2. Step 2: Convert to fraction form
    249,034.32/343,620.36 = 148,441.68/x
  3. Step 3: Cross multiply
    249,034.32x = 343,620.36 × 148,441.68
  4. Step 4: Simplify right side
    249,034.32x = 51,007,583,520.60
  5. Step 5: Solve for x
    x = 51,007,583,520.60/249,034.32
  6. Step 6: Final answer
    x = 204,821.50

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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.