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Finding the Fourth Proportional to 213,346.74, 320,036.67 and 63,575.58

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Solution

The fourth proportional to 213,346.74, 320,036.67 and 63,575.58 is: 95,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,346.74 : 320,036.67 = 63,575.58 : x
  2. Step 2: Convert to fraction form
    213,346.74/320,036.67 = 63,575.58/x
  3. Step 3: Cross multiply
    213,346.74x = 320,036.67 × 63,575.58
  4. Step 4: Simplify right side
    213,346.74x = 20,346,516,916.52
  5. Step 5: Solve for x
    x = 20,346,516,916.52/213,346.74
  6. Step 6: Final answer
    x = 95,368.30

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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.