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Finding the Fourth Proportional to 174,056.40, 260,890.20 and 99,212.40

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Solution

The fourth proportional to 174,056.40, 260,890.20 and 99,212.40 is: 148,707.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,056.40 : 260,890.20 = 99,212.40 : x
  2. Step 2: Convert to fraction form
    174,056.40/260,890.20 = 99,212.40/x
  3. Step 3: Cross multiply
    174,056.40x = 260,890.20 × 99,212.40
  4. Step 4: Simplify right side
    174,056.40x = 25,883,542,878.48
  5. Step 5: Solve for x
    x = 25,883,542,878.48/174,056.40
  6. Step 6: Final answer
    x = 148,707.79

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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.