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Finding the Fourth Proportional to 117,502,234.68, 162,149,859.04 and 65,289,927.90

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Solution

The fourth proportional to 117,502,234.68, 162,149,859.04 and 65,289,927.90 is: 90,098,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,502,234.68 : 162,149,859.04 = 65,289,927.90 : x
  2. Step 2: Convert to fraction form
    117,502,234.68/162,149,859.04 = 65,289,927.90/x
  3. Step 3: Cross multiply
    117,502,234.68x = 162,149,859.04 × 65,289,927.90
  4. Step 4: Simplify right side
    117,502,234.68x = 10,586,752,605,716,762
  5. Step 5: Solve for x
    x = 10,586,752,605,716,762/117,502,234.68
  6. Step 6: Final answer
    x = 90,098,308.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.