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Finding the Fourth Proportional to 201,715.91, 302,621.25 and 113,030.63

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Solution

The fourth proportional to 201,715.91, 302,621.25 and 113,030.63 is: 169,572.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,715.91 : 302,621.25 = 113,030.63 : x
  2. Step 2: Convert to fraction form
    201,715.91/302,621.25 = 113,030.63/x
  3. Step 3: Cross multiply
    201,715.91x = 302,621.25 × 113,030.63
  4. Step 4: Simplify right side
    201,715.91x = 34,205,470,538.89
  5. Step 5: Solve for x
    x = 34,205,470,538.89/201,715.91
  6. Step 6: Final answer
    x = 169,572.50

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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.