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Finding the Fourth Proportional to 268,889,603.60, 403,334,405.40 and 132,840,707.60

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Solution

The fourth proportional to 268,889,603.60, 403,334,405.40 and 132,840,707.60 is: 199,261,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,889,603.60 : 403,334,405.40 = 132,840,707.60 : x
  2. Step 2: Convert to fraction form
    268,889,603.60/403,334,405.40 = 132,840,707.60/x
  3. Step 3: Cross multiply
    268,889,603.60x = 403,334,405.40 × 132,840,707.60
  4. Step 4: Simplify right side
    268,889,603.60x = 53,579,227,812,761,256
  5. Step 5: Solve for x
    x = 53,579,227,812,761,256/268,889,603.60
  6. Step 6: Final answer
    x = 199,261,061.40

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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.