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Finding the Fourth Proportional to 72,600,273.70, 108,900,410.55 and 65,881,809.70

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Solution

The fourth proportional to 72,600,273.70, 108,900,410.55 and 65,881,809.70 is: 98,822,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,600,273.70 : 108,900,410.55 = 65,881,809.70 : x
  2. Step 2: Convert to fraction form
    72,600,273.70/108,900,410.55 = 65,881,809.70/x
  3. Step 3: Cross multiply
    72,600,273.70x = 108,900,410.55 × 65,881,809.70
  4. Step 4: Simplify right side
    72,600,273.70x = 7,174,556,124,106,972
  5. Step 5: Solve for x
    x = 7,174,556,124,106,972/72,600,273.70
  6. Step 6: Final answer
    x = 98,822,714.55

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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.