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Finding the Fourth Proportional to 75,624.40, 113,436.60 and 63,814.60

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Solution

The fourth proportional to 75,624.40, 113,436.60 and 63,814.60 is: 95,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,624.40 : 113,436.60 = 63,814.60 : x
  2. Step 2: Convert to fraction form
    75,624.40/113,436.60 = 63,814.60/x
  3. Step 3: Cross multiply
    75,624.40x = 113,436.60 × 63,814.60
  4. Step 4: Simplify right side
    75,624.40x = 7,238,911,254.36
  5. Step 5: Solve for x
    x = 7,238,911,254.36/75,624.40
  6. Step 6: Final answer
    x = 95,721.90

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1.5x scale

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.