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Finding the Fourth Proportional to 98,794.70, 147,873.85 and 65,088.55

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Solution

The fourth proportional to 98,794.70, 147,873.85 and 65,088.55 is: 97,423.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,794.70 : 147,873.85 = 65,088.55 : x
  2. Step 2: Convert to fraction form
    98,794.70/147,873.85 = 65,088.55/x
  3. Step 3: Cross multiply
    98,794.70x = 147,873.85 × 65,088.55
  4. Step 4: Simplify right side
    98,794.70x = 9,624,894,000.45
  5. Step 5: Solve for x
    x = 9,624,894,000.45/98,794.70
  6. Step 6: Final answer
    x = 97,423.18

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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.