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Finding the Fourth Proportional to 66,692,811.25, 92,036,079.53 and 36,169,419.25

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Solution

The fourth proportional to 66,692,811.25, 92,036,079.53 and 36,169,419.25 is: 49,913,798.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,692,811.25 : 92,036,079.53 = 36,169,419.25 : x
  2. Step 2: Convert to fraction form
    66,692,811.25/92,036,079.53 = 36,169,419.25/x
  3. Step 3: Cross multiply
    66,692,811.25x = 92,036,079.53 × 36,169,419.25
  4. Step 4: Simplify right side
    66,692,811.25x = 3,328,891,546,646,913
  5. Step 5: Solve for x
    x = 3,328,891,546,646,913/66,692,811.25
  6. Step 6: Final answer
    x = 49,913,798.57

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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.