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Finding the Fourth Proportional to 317,013.38, 475,547.73 and 80,356.04

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Solution

The fourth proportional to 317,013.38, 475,547.73 and 80,356.04 is: 120,541.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,013.38 : 475,547.73 = 80,356.04 : x
  2. Step 2: Convert to fraction form
    317,013.38/475,547.73 = 80,356.04/x
  3. Step 3: Cross multiply
    317,013.38x = 475,547.73 × 80,356.04
  4. Step 4: Simplify right side
    317,013.38x = 38,213,130,036.05
  5. Step 5: Solve for x
    x = 38,213,130,036.05/317,013.38
  6. Step 6: Final answer
    x = 120,541.07

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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.