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Finding the Fourth Proportional to 104,643.59, 144,408.51 and 56,897.15

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Solution

The fourth proportional to 104,643.59, 144,408.51 and 56,897.15 is: 78,518.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,643.59 : 144,408.51 = 56,897.15 : x
  2. Step 2: Convert to fraction form
    104,643.59/144,408.51 = 56,897.15/x
  3. Step 3: Cross multiply
    104,643.59x = 144,408.51 × 56,897.15
  4. Step 4: Simplify right side
    104,643.59x = 8,216,431,932.70
  5. Step 5: Solve for x
    x = 8,216,431,932.70/104,643.59
  6. Step 6: Final answer
    x = 78,518.26

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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.