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Finding the Fourth Proportional to 97,330, 134,315.72 and 52,618.32

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Solution

The fourth proportional to 97,330, 134,315.72 and 52,618.32 is: 72,613.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,330 : 134,315.72 = 52,618.32 : x
  2. Step 2: Convert to fraction form
    97,330/134,315.72 = 52,618.32/x
  3. Step 3: Cross multiply
    97,330x = 134,315.72 × 52,618.32
  4. Step 4: Simplify right side
    97,330x = 7,067,467,535.99
  5. Step 5: Solve for x
    x = 7,067,467,535.99/97,330
  6. Step 6: Final answer
    x = 72,613.45

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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.