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Finding the Fourth Proportional to 346,674.48, 520,073.16 and 130,528.56

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Solution

The fourth proportional to 346,674.48, 520,073.16 and 130,528.56 is: 195,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,674.48 : 520,073.16 = 130,528.56 : x
  2. Step 2: Convert to fraction form
    346,674.48/520,073.16 = 130,528.56/x
  3. Step 3: Cross multiply
    346,674.48x = 520,073.16 × 130,528.56
  4. Step 4: Simplify right side
    346,674.48x = 67,884,400,669.45
  5. Step 5: Solve for x
    x = 67,884,400,669.45/346,674.48
  6. Step 6: Final answer
    x = 195,815.97

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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.