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Finding the Fourth Proportional to 162,812.60, 224,678.76 and 91,192.40

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Solution

The fourth proportional to 162,812.60, 224,678.76 and 91,192.40 is: 125,844.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,812.60 : 224,678.76 = 91,192.40 : x
  2. Step 2: Convert to fraction form
    162,812.60/224,678.76 = 91,192.40/x
  3. Step 3: Cross multiply
    162,812.60x = 224,678.76 × 91,192.40
  4. Step 4: Simplify right side
    162,812.60x = 20,488,995,243.56
  5. Step 5: Solve for x
    x = 20,488,995,243.56/162,812.60
  6. Step 6: Final answer
    x = 125,844.04

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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.