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Finding the Fourth Proportional to 123,033.90, 172,364.10 and 123,033.90

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Solution

The fourth proportional to 123,033.90, 172,364.10 and 123,033.90 is: 172,364.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,033.90 : 172,364.10 = 123,033.90 : x
  2. Step 2: Convert to fraction form
    123,033.90/172,364.10 = 123,033.90/x
  3. Step 3: Cross multiply
    123,033.90x = 172,364.10 × 123,033.90
  4. Step 4: Simplify right side
    123,033.90x = 21,206,627,442.99
  5. Step 5: Solve for x
    x = 21,206,627,442.99/123,033.90
  6. Step 6: Final answer
    x = 172,364.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.