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Finding the Fourth Proportional to 104,641.92, 144,406.20 and 56,895.12

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Solution

The fourth proportional to 104,641.92, 144,406.20 and 56,895.12 is: 78,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.92 : 144,406.20 = 56,895.12 : x
  2. Step 2: Convert to fraction form
    104,641.92/144,406.20 = 56,895.12/x
  3. Step 3: Cross multiply
    104,641.92x = 144,406.20 × 56,895.12
  4. Step 4: Simplify right side
    104,641.92x = 8,216,008,077.74
  5. Step 5: Solve for x
    x = 8,216,008,077.74/104,641.92
  6. Step 6: Final answer
    x = 78,515.46

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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.