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Finding the Fourth Proportional to 73,155.94, 100,953.98 and 40,891.32

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Solution

The fourth proportional to 73,155.94, 100,953.98 and 40,891.32 is: 56,429.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,155.94 : 100,953.98 = 40,891.32 : x
  2. Step 2: Convert to fraction form
    73,155.94/100,953.98 = 40,891.32/x
  3. Step 3: Cross multiply
    73,155.94x = 100,953.98 × 40,891.32
  4. Step 4: Simplify right side
    73,155.94x = 4,128,141,501.45
  5. Step 5: Solve for x
    x = 4,128,141,501.45/73,155.94
  6. Step 6: Final answer
    x = 56,429.34

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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.