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Finding the Fourth Proportional to 101,720,547.64, 152,489,978.26 and 36,978,744.27

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Solution

The fourth proportional to 101,720,547.64, 152,489,978.26 and 36,978,744.27 is: 55,435,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,720,547.64 : 152,489,978.26 = 36,978,744.27 : x
  2. Step 2: Convert to fraction form
    101,720,547.64/152,489,978.26 = 36,978,744.27/x
  3. Step 3: Cross multiply
    101,720,547.64x = 152,489,978.26 × 36,978,744.27
  4. Step 4: Simplify right side
    101,720,547.64x = 5,638,887,909,629,506
  5. Step 5: Solve for x
    x = 5,638,887,909,629,506/101,720,547.64
  6. Step 6: Final answer
    x = 55,435,091.93

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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.