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Finding the Fourth Proportional to 169,988,853.80, 254,983,280.70 and 55,055,880.20

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Solution

The fourth proportional to 169,988,853.80, 254,983,280.70 and 55,055,880.20 is: 82,583,820.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,988,853.80 : 254,983,280.70 = 55,055,880.20 : x
  2. Step 2: Convert to fraction form
    169,988,853.80/254,983,280.70 = 55,055,880.20/x
  3. Step 3: Cross multiply
    169,988,853.80x = 254,983,280.70 × 55,055,880.20
  4. Step 4: Simplify right side
    169,988,853.80x = 14,038,328,955,222,172
  5. Step 5: Solve for x
    x = 14,038,328,955,222,172/169,988,853.80
  6. Step 6: Final answer
    x = 82,583,820.30

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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.