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Finding the Fourth Proportional to 160,339,615.20, 240,509,422.80 and 79,718,047.20

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Solution

The fourth proportional to 160,339,615.20, 240,509,422.80 and 79,718,047.20 is: 119,577,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,339,615.20 : 240,509,422.80 = 79,718,047.20 : x
  2. Step 2: Convert to fraction form
    160,339,615.20/240,509,422.80 = 79,718,047.20/x
  3. Step 3: Cross multiply
    160,339,615.20x = 240,509,422.80 × 79,718,047.20
  4. Step 4: Simplify right side
    160,339,615.20x = 19,172,941,518,815,156
  5. Step 5: Solve for x
    x = 19,172,941,518,815,156/160,339,615.20
  6. Step 6: Final answer
    x = 119,577,070.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.