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Finding the Fourth Proportional to 106,740, 147,301.44 and 64,300.32

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Solution

The fourth proportional to 106,740, 147,301.44 and 64,300.32 is: 88,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,740 : 147,301.44 = 64,300.32 : x
  2. Step 2: Convert to fraction form
    106,740/147,301.44 = 64,300.32/x
  3. Step 3: Cross multiply
    106,740x = 147,301.44 × 64,300.32
  4. Step 4: Simplify right side
    106,740x = 9,471,529,728.46
  5. Step 5: Solve for x
    x = 9,471,529,728.46/106,740
  6. Step 6: Final answer
    x = 88,734.59

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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.