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Finding the Fourth Proportional to 98,364.81, 147,553.73 and 28,244.73

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Solution

The fourth proportional to 98,364.81, 147,553.73 and 28,244.73 is: 42,368.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,364.81 : 147,553.73 = 28,244.73 : x
  2. Step 2: Convert to fraction form
    98,364.81/147,553.73 = 28,244.73/x
  3. Step 3: Cross multiply
    98,364.81x = 147,553.73 × 28,244.73
  4. Step 4: Simplify right side
    98,364.81x = 4,167,615,123.12
  5. Step 5: Solve for x
    x = 4,167,615,123.12/98,364.81
  6. Step 6: Final answer
    x = 42,368.96

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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.