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Finding the Fourth Proportional to 91,971,873.66, 137,371,514.99 and 83,204,688.81

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Solution

The fourth proportional to 91,971,873.66, 137,371,514.99 and 83,204,688.81 is: 124,276,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,971,873.66 : 137,371,514.99 = 83,204,688.81 : x
  2. Step 2: Convert to fraction form
    91,971,873.66/137,371,514.99 = 83,204,688.81/x
  3. Step 3: Cross multiply
    91,971,873.66x = 137,371,514.99 × 83,204,688.81
  4. Step 4: Simplify right side
    91,971,873.66x = 11,429,954,155,685,178
  5. Step 5: Solve for x
    x = 11,429,954,155,685,178/91,971,873.66
  6. Step 6: Final answer
    x = 124,276,626.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.