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Finding the Fourth Proportional to 228,283.50, 315,032.31 and 127,681.50

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Solution

The fourth proportional to 228,283.50, 315,032.31 and 127,681.50 is: 176,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,283.50 : 315,032.31 = 127,681.50 : x
  2. Step 2: Convert to fraction form
    228,283.50/315,032.31 = 127,681.50/x
  3. Step 3: Cross multiply
    228,283.50x = 315,032.31 × 127,681.50
  4. Step 4: Simplify right side
    228,283.50x = 40,223,797,889.27
  5. Step 5: Solve for x
    x = 40,223,797,889.27/228,283.50
  6. Step 6: Final answer
    x = 176,201.07

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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.