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Finding the Fourth Proportional to 173,464.95, 239,390.78 and 105,470.67

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Solution

The fourth proportional to 173,464.95, 239,390.78 and 105,470.67 is: 145,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,464.95 : 239,390.78 = 105,470.67 : x
  2. Step 2: Convert to fraction form
    173,464.95/239,390.78 = 105,470.67/x
  3. Step 3: Cross multiply
    173,464.95x = 239,390.78 × 105,470.67
  4. Step 4: Simplify right side
    173,464.95x = 25,248,705,958.42
  5. Step 5: Solve for x
    x = 25,248,705,958.42/173,464.95
  6. Step 6: Final answer
    x = 145,555.09

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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.