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Finding the Fourth Proportional to 78,457.55, 108,267.84 and 44,464.05

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Solution

The fourth proportional to 78,457.55, 108,267.84 and 44,464.05 is: 61,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,457.55 : 108,267.84 = 44,464.05 : x
  2. Step 2: Convert to fraction form
    78,457.55/108,267.84 = 44,464.05/x
  3. Step 3: Cross multiply
    78,457.55x = 108,267.84 × 44,464.05
  4. Step 4: Simplify right side
    78,457.55x = 4,814,026,651.15
  5. Step 5: Solve for x
    x = 4,814,026,651.15/78,457.55
  6. Step 6: Final answer
    x = 61,358.36

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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.