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Finding the Fourth Proportional to 161,650.71, 223,084.86 and 90,030.72

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Solution

The fourth proportional to 161,650.71, 223,084.86 and 90,030.72 is: 124,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,650.71 : 223,084.86 = 90,030.72 : x
  2. Step 2: Convert to fraction form
    161,650.71/223,084.86 = 90,030.72/x
  3. Step 3: Cross multiply
    161,650.71x = 223,084.86 × 90,030.72
  4. Step 4: Simplify right side
    161,650.71x = 20,084,490,566.90
  5. Step 5: Solve for x
    x = 20,084,490,566.90/161,650.71
  6. Step 6: Final answer
    x = 124,246.23

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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.