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Finding the Fourth Proportional to 76,339.92, 105,358.86 and 44,509.08

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Solution

The fourth proportional to 76,339.92, 105,358.86 and 44,509.08 is: 61,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,339.92 : 105,358.86 = 44,509.08 : x
  2. Step 2: Convert to fraction form
    76,339.92/105,358.86 = 44,509.08/x
  3. Step 3: Cross multiply
    76,339.92x = 105,358.86 × 44,509.08
  4. Step 4: Simplify right side
    76,339.92x = 4,689,425,928.45
  5. Step 5: Solve for x
    x = 4,689,425,928.45/76,339.92
  6. Step 6: Final answer
    x = 61,428.23

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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.