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Finding the Fourth Proportional to 169,951,630.80, 254,927,446.20 and 55,018,657.20

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Solution

The fourth proportional to 169,951,630.80, 254,927,446.20 and 55,018,657.20 is: 82,527,985.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,951,630.80 : 254,927,446.20 = 55,018,657.20 : x
  2. Step 2: Convert to fraction form
    169,951,630.80/254,927,446.20 = 55,018,657.20/x
  3. Step 3: Cross multiply
    169,951,630.80x = 254,927,446.20 × 55,018,657.20
  4. Step 4: Simplify right side
    169,951,630.80x = 14,025,765,773,349,242
  5. Step 5: Solve for x
    x = 14,025,765,773,349,242/169,951,630.80
  6. Step 6: Final answer
    x = 82,527,985.80

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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.