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Finding the Fourth Proportional to 93,597.12, 129,122.91 and 55,849.50

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Solution

The fourth proportional to 93,597.12, 129,122.91 and 55,849.50 is: 77,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,597.12 : 129,122.91 = 55,849.50 : x
  2. Step 2: Convert to fraction form
    93,597.12/129,122.91 = 55,849.50/x
  3. Step 3: Cross multiply
    93,597.12x = 129,122.91 × 55,849.50
  4. Step 4: Simplify right side
    93,597.12x = 7,211,449,962.05
  5. Step 5: Solve for x
    x = 7,211,449,962.05/93,597.12
  6. Step 6: Final answer
    x = 77,047.78

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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.