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Finding the Fourth Proportional to 104,507.84, 144,221.86 and 56,762.12

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Solution

The fourth proportional to 104,507.84, 144,221.86 and 56,762.12 is: 78,332.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,507.84 : 144,221.86 = 56,762.12 : x
  2. Step 2: Convert to fraction form
    104,507.84/144,221.86 = 56,762.12/x
  3. Step 3: Cross multiply
    104,507.84x = 144,221.86 × 56,762.12
  4. Step 4: Simplify right side
    104,507.84x = 8,186,338,523.94
  5. Step 5: Solve for x
    x = 8,186,338,523.94/104,507.84
  6. Step 6: Final answer
    x = 78,332.29

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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.