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Finding the Fourth Proportional to 235,953.84, 325,609.08 and 128,522.16

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Solution

The fourth proportional to 235,953.84, 325,609.08 and 128,522.16 is: 177,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,953.84 : 325,609.08 = 128,522.16 : x
  2. Step 2: Convert to fraction form
    235,953.84/325,609.08 = 128,522.16/x
  3. Step 3: Cross multiply
    235,953.84x = 325,609.08 × 128,522.16
  4. Step 4: Simplify right side
    235,953.84x = 41,847,982,277.21
  5. Step 5: Solve for x
    x = 41,847,982,277.21/235,953.84
  6. Step 6: Final answer
    x = 177,356.65

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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.