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Finding the Fourth Proportional to 317,009.16, 437,477.95 and 171,819.61

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Solution

The fourth proportional to 317,009.16, 437,477.95 and 171,819.61 is: 237,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,009.16 : 437,477.95 = 171,819.61 : x
  2. Step 2: Convert to fraction form
    317,009.16/437,477.95 = 171,819.61/x
  3. Step 3: Cross multiply
    317,009.16x = 437,477.95 × 171,819.61
  4. Step 4: Simplify right side
    317,009.16x = 75,167,291,368.01
  5. Step 5: Solve for x
    x = 75,167,291,368.01/317,009.16
  6. Step 6: Final answer
    x = 237,113.94

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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.