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Finding the Fourth Proportional to 65,763,978.30, 98,645,967.45 and 17,241,738.30

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Solution

The fourth proportional to 65,763,978.30, 98,645,967.45 and 17,241,738.30 is: 25,862,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,763,978.30 : 98,645,967.45 = 17,241,738.30 : x
  2. Step 2: Convert to fraction form
    65,763,978.30/98,645,967.45 = 17,241,738.30/x
  3. Step 3: Cross multiply
    65,763,978.30x = 98,645,967.45 × 17,241,738.30
  4. Step 4: Simplify right side
    65,763,978.30x = 1,700,827,955,123,218.50
  5. Step 5: Solve for x
    x = 1,700,827,955,123,218.50/65,763,978.30
  6. Step 6: Final answer
    x = 25,862,607.45

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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.