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Finding the Fourth Proportional to 98,019.60, 146,737.80 and 58,556.40

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Solution

The fourth proportional to 98,019.60, 146,737.80 and 58,556.40 is: 87,660.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,019.60 : 146,737.80 = 58,556.40 : x
  2. Step 2: Convert to fraction form
    98,019.60/146,737.80 = 58,556.40/x
  3. Step 3: Cross multiply
    98,019.60x = 146,737.80 × 58,556.40
  4. Step 4: Simplify right side
    98,019.60x = 8,592,437,311.92
  5. Step 5: Solve for x
    x = 8,592,437,311.92/98,019.60
  6. Step 6: Final answer
    x = 87,660.40

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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.