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Finding the Fourth Proportional to 100,602,705.70, 150,904,058.55 and 54,686,203.30

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Solution

The fourth proportional to 100,602,705.70, 150,904,058.55 and 54,686,203.30 is: 82,029,304.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,705.70 : 150,904,058.55 = 54,686,203.30 : x
  2. Step 2: Convert to fraction form
    100,602,705.70/150,904,058.55 = 54,686,203.30/x
  3. Step 3: Cross multiply
    100,602,705.70x = 150,904,058.55 × 54,686,203.30
  4. Step 4: Simplify right side
    100,602,705.70x = 8,252,370,024,660,403
  5. Step 5: Solve for x
    x = 8,252,370,024,660,403/100,602,705.70
  6. Step 6: Final answer
    x = 82,029,304.95

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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.