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Finding the Fourth Proportional to 100,992,017.70, 151,488,026.55 and 57,993,848.10

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Solution

The fourth proportional to 100,992,017.70, 151,488,026.55 and 57,993,848.10 is: 86,990,772.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,992,017.70 : 151,488,026.55 = 57,993,848.10 : x
  2. Step 2: Convert to fraction form
    100,992,017.70/151,488,026.55 = 57,993,848.10/x
  3. Step 3: Cross multiply
    100,992,017.70x = 151,488,026.55 × 57,993,848.10
  4. Step 4: Simplify right side
    100,992,017.70x = 8,785,373,600,709,468
  5. Step 5: Solve for x
    x = 8,785,373,600,709,468/100,992,017.70
  6. Step 6: Final answer
    x = 86,990,772.15

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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.