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Finding the Fourth Proportional to 315,916.80, 473,958.29 and 113,533.35

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Solution

The fourth proportional to 315,916.80, 473,958.29 and 113,533.35 is: 170,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,916.80 : 473,958.29 = 113,533.35 : x
  2. Step 2: Convert to fraction form
    315,916.80/473,958.29 = 113,533.35/x
  3. Step 3: Cross multiply
    315,916.80x = 473,958.29 × 113,533.35
  4. Step 4: Simplify right side
    315,916.80x = 53,810,072,423.97
  5. Step 5: Solve for x
    x = 53,810,072,423.97/315,916.80
  6. Step 6: Final answer
    x = 170,329.89

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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.