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Finding the Fourth Proportional to 61,971,415.80, 92,960,622.90 and 18,842,026.20

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Solution

The fourth proportional to 61,971,415.80, 92,960,622.90 and 18,842,026.20 is: 28,264,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,971,415.80 : 92,960,622.90 = 18,842,026.20 : x
  2. Step 2: Convert to fraction form
    61,971,415.80/92,960,622.90 = 18,842,026.20/x
  3. Step 3: Cross multiply
    61,971,415.80x = 92,960,622.90 × 18,842,026.20
  4. Step 4: Simplify right side
    61,971,415.80x = 1,751,566,492,250,120
  5. Step 5: Solve for x
    x = 1,751,566,492,250,120/61,971,415.80
  6. Step 6: Final answer
    x = 28,264,103.21

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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.