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Finding the Fourth Proportional to 97,360.80, 146,041.20 and 87,223.20

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Solution

The fourth proportional to 97,360.80, 146,041.20 and 87,223.20 is: 130,834.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,360.80 : 146,041.20 = 87,223.20 : x
  2. Step 2: Convert to fraction form
    97,360.80/146,041.20 = 87,223.20/x
  3. Step 3: Cross multiply
    97,360.80x = 146,041.20 × 87,223.20
  4. Step 4: Simplify right side
    97,360.80x = 12,738,180,795.84
  5. Step 5: Solve for x
    x = 12,738,180,795.84/97,360.80
  6. Step 6: Final answer
    x = 130,834.80

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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.