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Finding the Fourth Proportional to 127,902,050.40, 179,465,978.40 and 127,902,050.40

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Solution

The fourth proportional to 127,902,050.40, 179,465,978.40 and 127,902,050.40 is: 179,465,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,902,050.40 : 179,465,978.40 = 127,902,050.40 : x
  2. Step 2: Convert to fraction form
    127,902,050.40/179,465,978.40 = 127,902,050.40/x
  3. Step 3: Cross multiply
    127,902,050.40x = 179,465,978.40 × 127,902,050.40
  4. Step 4: Simplify right side
    127,902,050.40x = 22,954,066,614,402,112
  5. Step 5: Solve for x
    x = 22,954,066,614,402,112/127,902,050.40
  6. Step 6: Final answer
    x = 179,465,978.40

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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.