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Finding the Fourth Proportional to 65,934,686.40, 98,902,029.60 and 33,686,059.20

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Solution

The fourth proportional to 65,934,686.40, 98,902,029.60 and 33,686,059.20 is: 50,529,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,934,686.40 : 98,902,029.60 = 33,686,059.20 : x
  2. Step 2: Convert to fraction form
    65,934,686.40/98,902,029.60 = 33,686,059.20/x
  3. Step 3: Cross multiply
    65,934,686.40x = 98,902,029.60 × 33,686,059.20
  4. Step 4: Simplify right side
    65,934,686.40x = 3,331,619,624,105,752.50
  5. Step 5: Solve for x
    x = 3,331,619,624,105,752.50/65,934,686.40
  6. Step 6: Final answer
    x = 50,529,088.80

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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.