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Finding the Fourth Proportional to 347,167.70, 520,492.35 and 189,574.10

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Solution

The fourth proportional to 347,167.70, 520,492.35 and 189,574.10 is: 284,219.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,167.70 : 520,492.35 = 189,574.10 : x
  2. Step 2: Convert to fraction form
    347,167.70/520,492.35 = 189,574.10/x
  3. Step 3: Cross multiply
    347,167.70x = 520,492.35 × 189,574.10
  4. Step 4: Simplify right side
    347,167.70x = 98,671,868,808.14
  5. Step 5: Solve for x
    x = 98,671,868,808.14/347,167.70
  6. Step 6: Final answer
    x = 284,219.61

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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.