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Finding the Fourth Proportional to 162,659.76, 224,419.32 and 91,028.40

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Solution

The fourth proportional to 162,659.76, 224,419.32 and 91,028.40 is: 125,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,659.76 : 224,419.32 = 91,028.40 : x
  2. Step 2: Convert to fraction form
    162,659.76/224,419.32 = 91,028.40/x
  3. Step 3: Cross multiply
    162,659.76x = 224,419.32 × 91,028.40
  4. Step 4: Simplify right side
    162,659.76x = 20,428,531,628.69
  5. Step 5: Solve for x
    x = 20,428,531,628.69/162,659.76
  6. Step 6: Final answer
    x = 125,590.57

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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.