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Finding the Fourth Proportional to 104,484.80, 144,189.54 and 56,738.13

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Solution

The fourth proportional to 104,484.80, 144,189.54 and 56,738.13 is: 78,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,484.80 : 144,189.54 = 56,738.13 : x
  2. Step 2: Convert to fraction form
    104,484.80/144,189.54 = 56,738.13/x
  3. Step 3: Cross multiply
    104,484.80x = 144,189.54 × 56,738.13
  4. Step 4: Simplify right side
    104,484.80x = 8,181,044,865.16
  5. Step 5: Solve for x
    x = 8,181,044,865.16/104,484.80
  6. Step 6: Final answer
    x = 78,298.90

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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.