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Finding the Fourth Proportional to 162,186.71, 223,812.11 and 90,564.89

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Solution

The fourth proportional to 162,186.71, 223,812.11 and 90,564.89 is: 124,976.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,186.71 : 223,812.11 = 90,564.89 : x
  2. Step 2: Convert to fraction form
    162,186.71/223,812.11 = 90,564.89/x
  3. Step 3: Cross multiply
    162,186.71x = 223,812.11 × 90,564.89
  4. Step 4: Simplify right side
    162,186.71x = 20,269,518,230.17
  5. Step 5: Solve for x
    x = 20,269,518,230.17/162,186.71
  6. Step 6: Final answer
    x = 124,976.45

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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.