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Finding the Fourth Proportional to 346,952.70, 520,623.45 and 147,239.10

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Solution

The fourth proportional to 346,952.70, 520,623.45 and 147,239.10 is: 220,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,952.70 : 520,623.45 = 147,239.10 : x
  2. Step 2: Convert to fraction form
    346,952.70/520,623.45 = 147,239.10/x
  3. Step 3: Cross multiply
    346,952.70x = 520,623.45 × 147,239.10
  4. Step 4: Simplify right side
    346,952.70x = 76,656,128,216.90
  5. Step 5: Solve for x
    x = 76,656,128,216.90/346,952.70
  6. Step 6: Final answer
    x = 220,941.15

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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.