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Finding the Fourth Proportional to 303,090,711.84, 454,566,565.05 and 84,756,397.68

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Solution

The fourth proportional to 303,090,711.84, 454,566,565.05 and 84,756,397.68 is: 127,115,160.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,090,711.84 : 454,566,565.05 = 84,756,397.68 : x
  2. Step 2: Convert to fraction form
    303,090,711.84/454,566,565.05 = 84,756,397.68/x
  3. Step 3: Cross multiply
    303,090,711.84x = 454,566,565.05 × 84,756,397.68
  4. Step 4: Simplify right side
    303,090,711.84x = 38,527,424,559,568,736
  5. Step 5: Solve for x
    x = 38,527,424,559,568,736/303,090,711.84
  6. Step 6: Final answer
    x = 127,115,160.76

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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.