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Finding the Fourth Proportional to 169,988,672.30, 254,983,008.45 and 55,055,698.70

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Solution

The fourth proportional to 169,988,672.30, 254,983,008.45 and 55,055,698.70 is: 82,583,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,988,672.30 : 254,983,008.45 = 55,055,698.70 : x
  2. Step 2: Convert to fraction form
    169,988,672.30/254,983,008.45 = 55,055,698.70/x
  3. Step 3: Cross multiply
    169,988,672.30x = 254,983,008.45 × 55,055,698.70
  4. Step 4: Simplify right side
    169,988,672.30x = 14,038,267,686,842,754
  5. Step 5: Solve for x
    x = 14,038,267,686,842,754/169,988,672.30
  6. Step 6: Final answer
    x = 82,583,548.05

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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.