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Finding the Fourth Proportional to 104,646.15, 144,410.13 and 56,899.08

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Solution

The fourth proportional to 104,646.15, 144,410.13 and 56,899.08 is: 78,519.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.15 : 144,410.13 = 56,899.08 : x
  2. Step 2: Convert to fraction form
    104,646.15/144,410.13 = 56,899.08/x
  3. Step 3: Cross multiply
    104,646.15x = 144,410.13 × 56,899.08
  4. Step 4: Simplify right side
    104,646.15x = 8,216,803,539.68
  5. Step 5: Solve for x
    x = 8,216,803,539.68/104,646.15
  6. Step 6: Final answer
    x = 78,519.88

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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.