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Finding the Fourth Proportional to 106,672.68, 147,220.74 and 63,662.76

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Solution

The fourth proportional to 106,672.68, 147,220.74 and 63,662.76 is: 87,862.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,672.68 : 147,220.74 = 63,662.76 : x
  2. Step 2: Convert to fraction form
    106,672.68/147,220.74 = 63,662.76/x
  3. Step 3: Cross multiply
    106,672.68x = 147,220.74 × 63,662.76
  4. Step 4: Simplify right side
    106,672.68x = 9,372,478,637.64
  5. Step 5: Solve for x
    x = 9,372,478,637.64/106,672.68
  6. Step 6: Final answer
    x = 87,862.03

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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.