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Finding the Fourth Proportional to 73,985,430.10, 110,978,145.15 and 73,985,430.10

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Solution

The fourth proportional to 73,985,430.10, 110,978,145.15 and 73,985,430.10 is: 110,978,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985,430.10 : 110,978,145.15 = 73,985,430.10 : x
  2. Step 2: Convert to fraction form
    73,985,430.10/110,978,145.15 = 73,985,430.10/x
  3. Step 3: Cross multiply
    73,985,430.10x = 110,978,145.15 × 73,985,430.10
  4. Step 4: Simplify right side
    73,985,430.10x = 8,210,765,800,622,979
  5. Step 5: Solve for x
    x = 8,210,765,800,622,979/73,985,430.10
  6. Step 6: Final answer
    x = 110,978,145.15

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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.