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Finding the Fourth Proportional to 162,325.70, 224,009.00 and 90,705.80

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Solution

The fourth proportional to 162,325.70, 224,009.00 and 90,705.80 is: 125,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,325.70 : 224,009.00 = 90,705.80 : x
  2. Step 2: Convert to fraction form
    162,325.70/224,009.00 = 90,705.80/x
  3. Step 3: Cross multiply
    162,325.70x = 224,009.00 × 90,705.80
  4. Step 4: Simplify right side
    162,325.70x = 20,318,913,978.63
  5. Step 5: Solve for x
    x = 20,318,913,978.63/162,325.70
  6. Step 6: Final answer
    x = 125,173.73

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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.