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Finding the Fourth Proportional to 249,149.84, 373,746.36 and 71,671.28

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Solution

The fourth proportional to 249,149.84, 373,746.36 and 71,671.28 is: 107,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,149.84 : 373,746.36 = 71,671.28 : x
  2. Step 2: Convert to fraction form
    249,149.84/373,746.36 = 71,671.28/x
  3. Step 3: Cross multiply
    249,149.84x = 373,746.36 × 71,671.28
  4. Step 4: Simplify right side
    249,149.84x = 26,786,880,016.54
  5. Step 5: Solve for x
    x = 26,786,880,016.54/249,149.84
  6. Step 6: Final answer
    x = 107,513.13

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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.