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Finding the Fourth Proportional to 147,632.70, 221,449.05 and 97,769.10

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Solution

The fourth proportional to 147,632.70, 221,449.05 and 97,769.10 is: 146,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,632.70 : 221,449.05 = 97,769.10 : x
  2. Step 2: Convert to fraction form
    147,632.70/221,449.05 = 97,769.10/x
  3. Step 3: Cross multiply
    147,632.70x = 221,449.05 × 97,769.10
  4. Step 4: Simplify right side
    147,632.70x = 21,650,874,314.36
  5. Step 5: Solve for x
    x = 21,650,874,314.36/147,632.70
  6. Step 6: Final answer
    x = 146,653.65

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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.