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Finding the Fourth Proportional to 116,503,277.80, 174,754,916.70 and 80,223,572.20

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Solution

The fourth proportional to 116,503,277.80, 174,754,916.70 and 80,223,572.20 is: 120,335,358.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503,277.80 : 174,754,916.70 = 80,223,572.20 : x
  2. Step 2: Convert to fraction form
    116,503,277.80/174,754,916.70 = 80,223,572.20/x
  3. Step 3: Cross multiply
    116,503,277.80x = 174,754,916.70 × 80,223,572.20
  4. Step 4: Simplify right side
    116,503,277.80x = 14,019,463,677,187,436
  5. Step 5: Solve for x
    x = 14,019,463,677,187,436/116,503,277.80
  6. Step 6: Final answer
    x = 120,335,358.30

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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.