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Finding the Fourth Proportional to 347,159.52, 520,808.94 and 147,478.32

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Solution

The fourth proportional to 347,159.52, 520,808.94 and 147,478.32 is: 221,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,159.52 : 520,808.94 = 147,478.32 : x
  2. Step 2: Convert to fraction form
    347,159.52/520,808.94 = 147,478.32/x
  3. Step 3: Cross multiply
    347,159.52x = 520,808.94 × 147,478.32
  4. Step 4: Simplify right side
    347,159.52x = 76,808,027,512.18
  5. Step 5: Solve for x
    x = 76,808,027,512.18/347,159.52
  6. Step 6: Final answer
    x = 221,247.07

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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.