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Finding the Fourth Proportional to 127,902,055.40, 179,465,985.40 and 127,902,055.40

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Solution

The fourth proportional to 127,902,055.40, 179,465,985.40 and 127,902,055.40 is: 179,465,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,902,055.40 : 179,465,985.40 = 127,902,055.40 : x
  2. Step 2: Convert to fraction form
    127,902,055.40/179,465,985.40 = 127,902,055.40/x
  3. Step 3: Cross multiply
    127,902,055.40x = 179,465,985.40 × 127,902,055.40
  4. Step 4: Simplify right side
    127,902,055.40x = 22,954,068,407,046,392
  5. Step 5: Solve for x
    x = 22,954,068,407,046,392/127,902,055.40
  6. Step 6: Final answer
    x = 179,465,985.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.