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Finding the Fourth Proportional to 249,085.93, 343,746.17 and 141,671.43

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Solution

The fourth proportional to 249,085.93, 343,746.17 and 141,671.43 is: 195,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,085.93 : 343,746.17 = 141,671.43 : x
  2. Step 2: Convert to fraction form
    249,085.93/343,746.17 = 141,671.43/x
  3. Step 3: Cross multiply
    249,085.93x = 343,746.17 × 141,671.43
  4. Step 4: Simplify right side
    249,085.93x = 48,699,011,460.92
  5. Step 5: Solve for x
    x = 48,699,011,460.92/249,085.93
  6. Step 6: Final answer
    x = 195,510.89

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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.