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Finding the Fourth Proportional to 61,971,442.80, 92,960,663.40 and 18,842,053.20

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Solution

The fourth proportional to 61,971,442.80, 92,960,663.40 and 18,842,053.20 is: 28,264,143.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,971,442.80 : 92,960,663.40 = 18,842,053.20 : x
  2. Step 2: Convert to fraction form
    61,971,442.80/92,960,663.40 = 18,842,053.20/x
  3. Step 3: Cross multiply
    61,971,442.80x = 92,960,663.40 × 18,842,053.20
  4. Step 4: Simplify right side
    61,971,442.80x = 1,751,569,765,290,093
  5. Step 5: Solve for x
    x = 1,751,569,765,290,093/61,971,442.80
  6. Step 6: Final answer
    x = 28,264,143.71

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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.