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Finding the Fourth Proportional to 249,768.80, 374,653.20 and 173,661.20

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Solution

The fourth proportional to 249,768.80, 374,653.20 and 173,661.20 is: 260,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,768.80 : 374,653.20 = 173,661.20 : x
  2. Step 2: Convert to fraction form
    249,768.80/374,653.20 = 173,661.20/x
  3. Step 3: Cross multiply
    249,768.80x = 374,653.20 × 173,661.20
  4. Step 4: Simplify right side
    249,768.80x = 65,062,724,295.84
  5. Step 5: Solve for x
    x = 65,062,724,295.84/249,768.80
  6. Step 6: Final answer
    x = 260,491.80

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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.