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Finding the Fourth Proportional to 173,622.40, 260,239.20 and 98,778.40

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Solution

The fourth proportional to 173,622.40, 260,239.20 and 98,778.40 is: 148,057.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,622.40 : 260,239.20 = 98,778.40 : x
  2. Step 2: Convert to fraction form
    173,622.40/260,239.20 = 98,778.40/x
  3. Step 3: Cross multiply
    173,622.40x = 260,239.20 × 98,778.40
  4. Step 4: Simplify right side
    173,622.40x = 25,706,011,793.28
  5. Step 5: Solve for x
    x = 25,706,011,793.28/173,622.40
  6. Step 6: Final answer
    x = 148,057.00

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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.