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Finding the Fourth Proportional to 347,018.50, 520,528.02 and 97,700.50

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Solution

The fourth proportional to 347,018.50, 520,528.02 and 97,700.50 is: 146,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,018.50 : 520,528.02 = 97,700.50 : x
  2. Step 2: Convert to fraction form
    347,018.50/520,528.02 = 97,700.50/x
  3. Step 3: Cross multiply
    347,018.50x = 520,528.02 × 97,700.50
  4. Step 4: Simplify right side
    347,018.50x = 50,855,847,818.01
  5. Step 5: Solve for x
    x = 50,855,847,818.01/347,018.50
  6. Step 6: Final answer
    x = 146,550.83

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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.