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Finding the Fourth Proportional to 85,103,435.30, 127,655,152.95 and 85,103,435.30

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Solution

The fourth proportional to 85,103,435.30, 127,655,152.95 and 85,103,435.30 is: 127,655,152.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,103,435.30 : 127,655,152.95 = 85,103,435.30 : x
  2. Step 2: Convert to fraction form
    85,103,435.30/127,655,152.95 = 85,103,435.30/x
  3. Step 3: Cross multiply
    85,103,435.30x = 127,655,152.95 × 85,103,435.30
  4. Step 4: Simplify right side
    85,103,435.30x = 10,863,892,049,791,930
  5. Step 5: Solve for x
    x = 10,863,892,049,791,930/85,103,435.30
  6. Step 6: Final answer
    x = 127,655,152.95

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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.