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Finding the Fourth Proportional to 285,110.56, 427,661.36 and 98,123.68

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Solution

The fourth proportional to 285,110.56, 427,661.36 and 98,123.68 is: 147,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,110.56 : 427,661.36 = 98,123.68 : x
  2. Step 2: Convert to fraction form
    285,110.56/427,661.36 = 98,123.68/x
  3. Step 3: Cross multiply
    285,110.56x = 427,661.36 × 98,123.68
  4. Step 4: Simplify right side
    285,110.56x = 41,963,706,437.00
  5. Step 5: Solve for x
    x = 41,963,706,437.00/285,110.56
  6. Step 6: Final answer
    x = 147,183.98

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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.