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Finding the Fourth Proportional to 173,042.30, 259,563.45 and 138,050.30

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Solution

The fourth proportional to 173,042.30, 259,563.45 and 138,050.30 is: 207,075.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,042.30 : 259,563.45 = 138,050.30 : x
  2. Step 2: Convert to fraction form
    173,042.30/259,563.45 = 138,050.30/x
  3. Step 3: Cross multiply
    173,042.30x = 259,563.45 × 138,050.30
  4. Step 4: Simplify right side
    173,042.30x = 35,832,812,141.54
  5. Step 5: Solve for x
    x = 35,832,812,141.54/173,042.30
  6. Step 6: Final answer
    x = 207,075.45

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1.5x scale

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.