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Finding the Fourth Proportional to 249,140.50, 343,813.80 and 135,963.26

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Solution

The fourth proportional to 249,140.50, 343,813.80 and 135,963.26 is: 187,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,140.50 : 343,813.80 = 135,963.26 : x
  2. Step 2: Convert to fraction form
    249,140.50/343,813.80 = 135,963.26/x
  3. Step 3: Cross multiply
    249,140.50x = 343,813.80 × 135,963.26
  4. Step 4: Simplify right side
    249,140.50x = 46,746,045,080.99
  5. Step 5: Solve for x
    x = 46,746,045,080.99/249,140.50
  6. Step 6: Final answer
    x = 187,629.25

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1.5x scale

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.