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Finding the Fourth Proportional to 104,077.65, 143,630.64 and 63,783.63

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Solution

The fourth proportional to 104,077.65, 143,630.64 and 63,783.63 is: 88,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,077.65 : 143,630.64 = 63,783.63 : x
  2. Step 2: Convert to fraction form
    104,077.65/143,630.64 = 63,783.63/x
  3. Step 3: Cross multiply
    104,077.65x = 143,630.64 × 63,783.63
  4. Step 4: Simplify right side
    104,077.65x = 9,161,283,598.42
  5. Step 5: Solve for x
    x = 9,161,283,598.42/104,077.65
  6. Step 6: Final answer
    x = 88,023.54

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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.