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Finding the Fourth Proportional to 104,612.84, 144,365.60 and 56,866.53

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Solution

The fourth proportional to 104,612.84, 144,365.60 and 56,866.53 is: 78,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,612.84 : 144,365.60 = 56,866.53 : x
  2. Step 2: Convert to fraction form
    104,612.84/144,365.60 = 56,866.53/x
  3. Step 3: Cross multiply
    104,612.84x = 144,365.60 × 56,866.53
  4. Step 4: Simplify right side
    104,612.84x = 8,209,571,406.91
  5. Step 5: Solve for x
    x = 8,209,571,406.91/104,612.84
  6. Step 6: Final answer
    x = 78,475.75

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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.