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Finding the Fourth Proportional to 104,627.94, 144,388.20 and 56,881.47

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Solution

The fourth proportional to 104,627.94, 144,388.20 and 56,881.47 is: 78,497.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,627.94 : 144,388.20 = 56,881.47 : x
  2. Step 2: Convert to fraction form
    104,627.94/144,388.20 = 56,881.47/x
  3. Step 3: Cross multiply
    104,627.94x = 144,388.20 × 56,881.47
  4. Step 4: Simplify right side
    104,627.94x = 8,213,013,066.65
  5. Step 5: Solve for x
    x = 8,213,013,066.65/104,627.94
  6. Step 6: Final answer
    x = 78,497.32

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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.