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Finding the Fourth Proportional to 89,191.16, 133,799.72 and 47,615.48

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Solution

The fourth proportional to 89,191.16, 133,799.72 and 47,615.48 is: 71,430.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,191.16 : 133,799.72 = 47,615.48 : x
  2. Step 2: Convert to fraction form
    89,191.16/133,799.72 = 47,615.48/x
  3. Step 3: Cross multiply
    89,191.16x = 133,799.72 × 47,615.48
  4. Step 4: Simplify right side
    89,191.16x = 6,370,937,891.67
  5. Step 5: Solve for x
    x = 6,370,937,891.67/89,191.16
  6. Step 6: Final answer
    x = 71,430.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.