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Finding the Fourth Proportional to 86,602,336.71, 129,922,894.03 and 29,093,039.38

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Solution

The fourth proportional to 86,602,336.71, 129,922,894.03 and 29,093,039.38 is: 43,646,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,602,336.71 : 129,922,894.03 = 29,093,039.38 : x
  2. Step 2: Convert to fraction form
    86,602,336.71/129,922,894.03 = 29,093,039.38/x
  3. Step 3: Cross multiply
    86,602,336.71x = 129,922,894.03 × 29,093,039.38
  4. Step 4: Simplify right side
    86,602,336.71x = 3,779,851,872,378,357
  5. Step 5: Solve for x
    x = 3,779,851,872,378,357/86,602,336.71
  6. Step 6: Final answer
    x = 43,646,072.57

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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.