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Finding the Fourth Proportional to 110,987,939.66, 153,152,978.91 and 66,325,048.43

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Solution

The fourth proportional to 110,987,939.66, 153,152,978.91 and 66,325,048.43 is: 91,522,365.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,987,939.66 : 153,152,978.91 = 66,325,048.43 : x
  2. Step 2: Convert to fraction form
    110,987,939.66/153,152,978.91 = 66,325,048.43/x
  3. Step 3: Cross multiply
    110,987,939.66x = 153,152,978.91 × 66,325,048.43
  4. Step 4: Simplify right side
    110,987,939.66x = 10,157,878,742,638,754
  5. Step 5: Solve for x
    x = 10,157,878,742,638,754/110,987,939.66
  6. Step 6: Final answer
    x = 91,522,365.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.