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Finding the Fourth Proportional to 104,641.16, 144,403.12 and 56,894.08

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Solution

The fourth proportional to 104,641.16, 144,403.12 and 56,894.08 is: 78,512.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,641.16 : 144,403.12 = 56,894.08 : x
  2. Step 2: Convert to fraction form
    104,641.16/144,403.12 = 56,894.08/x
  3. Step 3: Cross multiply
    104,641.16x = 144,403.12 × 56,894.08
  4. Step 4: Simplify right side
    104,641.16x = 8,215,682,661.53
  5. Step 5: Solve for x
    x = 8,215,682,661.53/104,641.16
  6. Step 6: Final answer
    x = 78,512.92

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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.