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Finding the Fourth Proportional to 167,128.60, 249,963.90 and 149,486.80

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Solution

The fourth proportional to 167,128.60, 249,963.90 and 149,486.80 is: 223,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,128.60 : 249,963.90 = 149,486.80 : x
  2. Step 2: Convert to fraction form
    167,128.60/249,963.90 = 149,486.80/x
  3. Step 3: Cross multiply
    167,128.60x = 249,963.90 × 149,486.80
  4. Step 4: Simplify right side
    167,128.60x = 37,366,303,526.52
  5. Step 5: Solve for x
    x = 37,366,303,526.52/167,128.60
  6. Step 6: Final answer
    x = 223,578.15

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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.