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Finding the Fourth Proportional to 357,584,805.60, 536,251,237.20 and 127,561,394.40

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Solution

The fourth proportional to 357,584,805.60, 536,251,237.20 and 127,561,394.40 is: 191,297,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,584,805.60 : 536,251,237.20 = 127,561,394.40 : x
  2. Step 2: Convert to fraction form
    357,584,805.60/536,251,237.20 = 127,561,394.40/x
  3. Step 3: Cross multiply
    357,584,805.60x = 536,251,237.20 × 127,561,394.40
  4. Step 4: Simplify right side
    357,584,805.60x = 68,404,955,565,957,152
  5. Step 5: Solve for x
    x = 68,404,955,565,957,152/357,584,805.60
  6. Step 6: Final answer
    x = 191,297,153.84

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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.