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Finding the Fourth Proportional to 115,969,806.40, 173,805,410.40 and 88,909,326.40

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Solution

The fourth proportional to 115,969,806.40, 173,805,410.40 and 88,909,326.40 is: 133,249,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,969,806.40 : 173,805,410.40 = 88,909,326.40 : x
  2. Step 2: Convert to fraction form
    115,969,806.40/173,805,410.40 = 88,909,326.40/x
  3. Step 3: Cross multiply
    115,969,806.40x = 173,805,410.40 × 88,909,326.40
  4. Step 4: Simplify right side
    115,969,806.40x = 15,452,921,963,339,556
  5. Step 5: Solve for x
    x = 15,452,921,963,339,556/115,969,806.40
  6. Step 6: Final answer
    x = 133,249,527.99

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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.