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Finding the Fourth Proportional to 98,156.52, 135,421.48 and 64,184.88

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Solution

The fourth proportional to 98,156.52, 135,421.48 and 64,184.88 is: 88,552.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,156.52 : 135,421.48 = 64,184.88 : x
  2. Step 2: Convert to fraction form
    98,156.52/135,421.48 = 64,184.88/x
  3. Step 3: Cross multiply
    98,156.52x = 135,421.48 × 64,184.88
  4. Step 4: Simplify right side
    98,156.52x = 8,692,011,443.22
  5. Step 5: Solve for x
    x = 8,692,011,443.22/98,156.52
  6. Step 6: Final answer
    x = 88,552.56

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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.