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Finding the Fourth Proportional to 161,447.68, 222,798.90 and 89,830.72

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Solution

The fourth proportional to 161,447.68, 222,798.90 and 89,830.72 is: 123,967.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,447.68 : 222,798.90 = 89,830.72 : x
  2. Step 2: Convert to fraction form
    161,447.68/222,798.90 = 89,830.72/x
  3. Step 3: Cross multiply
    161,447.68x = 222,798.90 × 89,830.72
  4. Step 4: Simplify right side
    161,447.68x = 20,014,185,602.21
  5. Step 5: Solve for x
    x = 20,014,185,602.21/161,447.68
  6. Step 6: Final answer
    x = 123,967.01

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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.