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Finding the Fourth Proportional to 249,261.39, 343,978.92 and 136,084.14

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Solution

The fourth proportional to 249,261.39, 343,978.92 and 136,084.14 is: 187,795.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,261.39 : 343,978.92 = 136,084.14 : x
  2. Step 2: Convert to fraction form
    249,261.39/343,978.92 = 136,084.14/x
  3. Step 3: Cross multiply
    249,261.39x = 343,978.92 × 136,084.14
  4. Step 4: Simplify right side
    249,261.39x = 46,810,075,506.33
  5. Step 5: Solve for x
    x = 46,810,075,506.33/249,261.39
  6. Step 6: Final answer
    x = 187,795.13

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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.