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Finding the Fourth Proportional to 161,807.33, 223,295.15 and 90,191.88

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Solution

The fourth proportional to 161,807.33, 223,295.15 and 90,191.88 is: 124,465.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,807.33 : 223,295.15 = 90,191.88 : x
  2. Step 2: Convert to fraction form
    161,807.33/223,295.15 = 90,191.88/x
  3. Step 3: Cross multiply
    161,807.33x = 223,295.15 × 90,191.88
  4. Step 4: Simplify right side
    161,807.33x = 20,139,409,598.86
  5. Step 5: Solve for x
    x = 20,139,409,598.86/161,807.33
  6. Step 6: Final answer
    x = 124,465.37

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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.