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Finding the Fourth Proportional to 98,682.40, 148,023.42 and 28,561.60

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Solution

The fourth proportional to 98,682.40, 148,023.42 and 28,561.60 is: 42,842.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,682.40 : 148,023.42 = 28,561.60 : x
  2. Step 2: Convert to fraction form
    98,682.40/148,023.42 = 28,561.60/x
  3. Step 3: Cross multiply
    98,682.40x = 148,023.42 × 28,561.60
  4. Step 4: Simplify right side
    98,682.40x = 4,227,785,712.67
  5. Step 5: Solve for x
    x = 4,227,785,712.67/98,682.40
  6. Step 6: Final answer
    x = 42,842.35

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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.