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Finding the Fourth Proportional to 97,491.32, 134,529.84 and 57,200.84

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Solution

The fourth proportional to 97,491.32, 134,529.84 and 57,200.84 is: 78,932.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,491.32 : 134,529.84 = 57,200.84 : x
  2. Step 2: Convert to fraction form
    97,491.32/134,529.84 = 57,200.84/x
  3. Step 3: Cross multiply
    97,491.32x = 134,529.84 × 57,200.84
  4. Step 4: Simplify right side
    97,491.32x = 7,695,219,853.07
  5. Step 5: Solve for x
    x = 7,695,219,853.07/97,491.32
  6. Step 6: Final answer
    x = 78,932.36

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1.5x scale

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.