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Finding the Fourth Proportional to 260,783.76, 359,882.72 and 147,628.32

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Solution

The fourth proportional to 260,783.76, 359,882.72 and 147,628.32 is: 203,727.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,783.76 : 359,882.72 = 147,628.32 : x
  2. Step 2: Convert to fraction form
    260,783.76/359,882.72 = 147,628.32/x
  3. Step 3: Cross multiply
    260,783.76x = 359,882.72 × 147,628.32
  4. Step 4: Simplify right side
    260,783.76x = 53,128,881,350.63
  5. Step 5: Solve for x
    x = 53,128,881,350.63/260,783.76
  6. Step 6: Final answer
    x = 203,727.72

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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.