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Finding the Fourth Proportional to 104,423.94, 144,103.50 and 61,408.32

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Solution

The fourth proportional to 104,423.94, 144,103.50 and 61,408.32 is: 84,742.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,423.94 : 144,103.50 = 61,408.32 : x
  2. Step 2: Convert to fraction form
    104,423.94/144,103.50 = 61,408.32/x
  3. Step 3: Cross multiply
    104,423.94x = 144,103.50 × 61,408.32
  4. Step 4: Simplify right side
    104,423.94x = 8,849,153,841.12
  5. Step 5: Solve for x
    x = 8,849,153,841.12/104,423.94
  6. Step 6: Final answer
    x = 84,742.58

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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.