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Finding the Fourth Proportional to 249,085.68, 343,745.82 and 141,671.18

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Solution

The fourth proportional to 249,085.68, 343,745.82 and 141,671.18 is: 195,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,085.68 : 343,745.82 = 141,671.18 : x
  2. Step 2: Convert to fraction form
    249,085.68/343,745.82 = 141,671.18/x
  3. Step 3: Cross multiply
    249,085.68x = 343,745.82 × 141,671.18
  4. Step 4: Simplify right side
    249,085.68x = 48,698,874,220.74
  5. Step 5: Solve for x
    x = 48,698,874,220.74/249,085.68
  6. Step 6: Final answer
    x = 195,510.53

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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.