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Finding the Fourth Proportional to 202,863,854.88, 304,441,069.44 and 86,360,892.32

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Solution

The fourth proportional to 202,863,854.88, 304,441,069.44 and 86,360,892.32 is: 129,603,188.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,863,854.88 : 304,441,069.44 = 86,360,892.32 : x
  2. Step 2: Convert to fraction form
    202,863,854.88/304,441,069.44 = 86,360,892.32/x
  3. Step 3: Cross multiply
    202,863,854.88x = 304,441,069.44 × 86,360,892.32
  4. Step 4: Simplify right side
    202,863,854.88x = 26,291,802,415,693,480
  5. Step 5: Solve for x
    x = 26,291,802,415,693,480/202,863,854.88
  6. Step 6: Final answer
    x = 129,603,188.46

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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.