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Finding the Fourth Proportional to 107,178.75, 147,908.72 and 58,777.63

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Solution

The fourth proportional to 107,178.75, 147,908.72 and 58,777.63 is: 81,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,178.75 : 147,908.72 = 58,777.63 : x
  2. Step 2: Convert to fraction form
    107,178.75/147,908.72 = 58,777.63/x
  3. Step 3: Cross multiply
    107,178.75x = 147,908.72 × 58,777.63
  4. Step 4: Simplify right side
    107,178.75x = 8,693,723,795.11
  5. Step 5: Solve for x
    x = 8,693,723,795.11/107,178.75
  6. Step 6: Final answer
    x = 81,114.25

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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.