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Finding the Fourth Proportional to 98,874.81, 148,364.51 and 53,928.62

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Solution

The fourth proportional to 98,874.81, 148,364.51 and 53,928.62 is: 80,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,874.81 : 148,364.51 = 53,928.62 : x
  2. Step 2: Convert to fraction form
    98,874.81/148,364.51 = 53,928.62/x
  3. Step 3: Cross multiply
    98,874.81x = 148,364.51 × 53,928.62
  4. Step 4: Simplify right side
    98,874.81x = 8,001,093,281.28
  5. Step 5: Solve for x
    x = 8,001,093,281.28/98,874.81
  6. Step 6: Final answer
    x = 80,921.45

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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.