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Finding the Fourth Proportional to 173,356.30, 260,034.45 and 138,364.30

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Solution

The fourth proportional to 173,356.30, 260,034.45 and 138,364.30 is: 207,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,356.30 : 260,034.45 = 138,364.30 : x
  2. Step 2: Convert to fraction form
    173,356.30/260,034.45 = 138,364.30/x
  3. Step 3: Cross multiply
    173,356.30x = 260,034.45 × 138,364.30
  4. Step 4: Simplify right side
    173,356.30x = 35,979,484,650.14
  5. Step 5: Solve for x
    x = 35,979,484,650.14/173,356.30
  6. Step 6: Final answer
    x = 207,546.45

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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.