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Finding the Fourth Proportional to 317,130, 437,652.63 and 173,895.54

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Solution

The fourth proportional to 317,130, 437,652.63 and 173,895.54 is: 239,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,130 : 437,652.63 = 173,895.54 : x
  2. Step 2: Convert to fraction form
    317,130/437,652.63 = 173,895.54/x
  3. Step 3: Cross multiply
    317,130x = 437,652.63 × 173,895.54
  4. Step 4: Simplify right side
    317,130x = 76,105,840,426.27
  5. Step 5: Solve for x
    x = 76,105,840,426.27/317,130
  6. Step 6: Final answer
    x = 239,983.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.