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Finding the Fourth Proportional to 73,878,959.70, 110,721,801.15 and 39,726,767.70

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Solution

The fourth proportional to 73,878,959.70, 110,721,801.15 and 39,726,767.70 is: 59,538,186.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,878,959.70 : 110,721,801.15 = 39,726,767.70 : x
  2. Step 2: Convert to fraction form
    73,878,959.70/110,721,801.15 = 39,726,767.70/x
  3. Step 3: Cross multiply
    73,878,959.70x = 110,721,801.15 × 39,726,767.70
  4. Step 4: Simplify right side
    73,878,959.70x = 4,398,619,273,611,643.50
  5. Step 5: Solve for x
    x = 4,398,619,273,611,643.50/73,878,959.70
  6. Step 6: Final answer
    x = 59,538,186.40

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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.