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Finding the Fourth Proportional to 98,719.40, 148,079.10 and 95,803.40

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Solution

The fourth proportional to 98,719.40, 148,079.10 and 95,803.40 is: 143,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,719.40 : 148,079.10 = 95,803.40 : x
  2. Step 2: Convert to fraction form
    98,719.40/148,079.10 = 95,803.40/x
  3. Step 3: Cross multiply
    98,719.40x = 148,079.10 × 95,803.40
  4. Step 4: Simplify right side
    98,719.40x = 14,186,481,248.94
  5. Step 5: Solve for x
    x = 14,186,481,248.94/98,719.40
  6. Step 6: Final answer
    x = 143,705.10

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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.