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Finding the Fourth Proportional to 98,530.24, 135,968.88 and 53,818.24

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Solution

The fourth proportional to 98,530.24, 135,968.88 and 53,818.24 is: 74,267.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,530.24 : 135,968.88 = 53,818.24 : x
  2. Step 2: Convert to fraction form
    98,530.24/135,968.88 = 53,818.24/x
  3. Step 3: Cross multiply
    98,530.24x = 135,968.88 × 53,818.24
  4. Step 4: Simplify right side
    98,530.24x = 7,317,605,816.37
  5. Step 5: Solve for x
    x = 7,317,605,816.37/98,530.24
  6. Step 6: Final answer
    x = 74,267.61

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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.