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Finding the Fourth Proportional to 98,771.76, 148,008.96 and 59,285.76

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Solution

The fourth proportional to 98,771.76, 148,008.96 and 59,285.76 is: 88,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,771.76 : 148,008.96 = 59,285.76 : x
  2. Step 2: Convert to fraction form
    98,771.76/148,008.96 = 59,285.76/x
  3. Step 3: Cross multiply
    98,771.76x = 148,008.96 × 59,285.76
  4. Step 4: Simplify right side
    98,771.76x = 8,774,823,680.41
  5. Step 5: Solve for x
    x = 8,774,823,680.41/98,771.76
  6. Step 6: Final answer
    x = 88,839.40

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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.