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Finding the Fourth Proportional to 169,988,881.80, 254,983,322.70 and 55,055,908.20

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Solution

The fourth proportional to 169,988,881.80, 254,983,322.70 and 55,055,908.20 is: 82,583,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,988,881.80 : 254,983,322.70 = 55,055,908.20 : x
  2. Step 2: Convert to fraction form
    169,988,881.80/254,983,322.70 = 55,055,908.20/x
  3. Step 3: Cross multiply
    169,988,881.80x = 254,983,322.70 × 55,055,908.20
  4. Step 4: Simplify right side
    169,988,881.80x = 14,038,338,407,102,176
  5. Step 5: Solve for x
    x = 14,038,338,407,102,176/169,988,881.80
  6. Step 6: Final answer
    x = 82,583,862.30

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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.