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Finding the Fourth Proportional to 61,990,670.94, 92,928,440.56 and 27,428,613.12

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Solution

The fourth proportional to 61,990,670.94, 92,928,440.56 and 27,428,613.12 is: 41,117,448.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,990,670.94 : 92,928,440.56 = 27,428,613.12 : x
  2. Step 2: Convert to fraction form
    61,990,670.94/92,928,440.56 = 27,428,613.12/x
  3. Step 3: Cross multiply
    61,990,670.94x = 92,928,440.56 × 27,428,613.12
  4. Step 4: Simplify right side
    61,990,670.94x = 2,548,898,244,128,905.50
  5. Step 5: Solve for x
    x = 2,548,898,244,128,905.50/61,990,670.94
  6. Step 6: Final answer
    x = 41,117,448.89

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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.