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Finding the Fourth Proportional to 163,119.89, 225,093.80 and 90,526.68

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Solution

The fourth proportional to 163,119.89, 225,093.80 and 90,526.68 is: 124,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,119.89 : 225,093.80 = 90,526.68 : x
  2. Step 2: Convert to fraction form
    163,119.89/225,093.80 = 90,526.68/x
  3. Step 3: Cross multiply
    163,119.89x = 225,093.80 × 90,526.68
  4. Step 4: Simplify right side
    163,119.89x = 20,376,994,628.90
  5. Step 5: Solve for x
    x = 20,376,994,628.90/163,119.89
  6. Step 6: Final answer
    x = 124,920.35

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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.