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Finding the Fourth Proportional to 98,000.76, 135,237.06 and 57,716.20

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Solution

The fourth proportional to 98,000.76, 135,237.06 and 57,716.20 is: 79,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,000.76 : 135,237.06 = 57,716.20 : x
  2. Step 2: Convert to fraction form
    98,000.76/135,237.06 = 57,716.20/x
  3. Step 3: Cross multiply
    98,000.76x = 135,237.06 × 57,716.20
  4. Step 4: Simplify right side
    98,000.76x = 7,805,369,202.37
  5. Step 5: Solve for x
    x = 7,805,369,202.37/98,000.76
  6. Step 6: Final answer
    x = 79,646.01

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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.