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Finding the Fourth Proportional to 104,046,630.80, 155,901,984.60 and 65,639,411.60

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Solution

The fourth proportional to 104,046,630.80, 155,901,984.60 and 65,639,411.60 is: 98,353,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,046,630.80 : 155,901,984.60 = 65,639,411.60 : x
  2. Step 2: Convert to fraction form
    104,046,630.80/155,901,984.60 = 65,639,411.60/x
  3. Step 3: Cross multiply
    104,046,630.80x = 155,901,984.60 × 65,639,411.60
  4. Step 4: Simplify right side
    104,046,630.80x = 10,233,314,536,416,262
  5. Step 5: Solve for x
    x = 10,233,314,536,416,262/104,046,630.80
  6. Step 6: Final answer
    x = 98,353,156.25

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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.