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Finding the Fourth Proportional to 65,852,320.80, 98,788,978.80 and 27,494,090.40

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Solution

The fourth proportional to 65,852,320.80, 98,788,978.80 and 27,494,090.40 is: 41,245,518.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,852,320.80 : 98,788,978.80 = 27,494,090.40 : x
  2. Step 2: Convert to fraction form
    65,852,320.80/98,788,978.80 = 27,494,090.40/x
  3. Step 3: Cross multiply
    65,852,320.80x = 98,788,978.80 × 27,494,090.40
  4. Step 4: Simplify right side
    65,852,320.80x = 2,716,113,113,650,883.50
  5. Step 5: Solve for x
    x = 2,716,113,113,650,883.50/65,852,320.80
  6. Step 6: Final answer
    x = 41,245,518.47

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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.