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Finding the Fourth Proportional to 107,986,208.13, 148,978,564.61 and 62,715,246.67

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Solution

The fourth proportional to 107,986,208.13, 148,978,564.61 and 62,715,246.67 is: 86,522,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,986,208.13 : 148,978,564.61 = 62,715,246.67 : x
  2. Step 2: Convert to fraction form
    107,986,208.13/148,978,564.61 = 62,715,246.67/x
  3. Step 3: Cross multiply
    107,986,208.13x = 148,978,564.61 × 62,715,246.67
  4. Step 4: Simplify right side
    107,986,208.13x = 9,343,227,427,931,328
  5. Step 5: Solve for x
    x = 9,343,227,427,931,328/107,986,208.13
  6. Step 6: Final answer
    x = 86,522,414.20

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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.