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Finding the Fourth Proportional to 106,699.60, 147,199.20 and 64,233.53

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Solution

The fourth proportional to 106,699.60, 147,199.20 and 64,233.53 is: 88,614.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,699.60 : 147,199.20 = 64,233.53 : x
  2. Step 2: Convert to fraction form
    106,699.60/147,199.20 = 64,233.53/x
  3. Step 3: Cross multiply
    106,699.60x = 147,199.20 × 64,233.53
  4. Step 4: Simplify right side
    106,699.60x = 9,455,124,229.18
  5. Step 5: Solve for x
    x = 9,455,124,229.18/106,699.60
  6. Step 6: Final answer
    x = 88,614.43

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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.