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Finding the Fourth Proportional to 246,643.80, 369,965.70 and 152,165.40

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Solution

The fourth proportional to 246,643.80, 369,965.70 and 152,165.40 is: 228,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,643.80 : 369,965.70 = 152,165.40 : x
  2. Step 2: Convert to fraction form
    246,643.80/369,965.70 = 152,165.40/x
  3. Step 3: Cross multiply
    246,643.80x = 369,965.70 × 152,165.40
  4. Step 4: Simplify right side
    246,643.80x = 56,295,978,726.78
  5. Step 5: Solve for x
    x = 56,295,978,726.78/246,643.80
  6. Step 6: Final answer
    x = 228,248.10

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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.