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Finding the Fourth Proportional to 79,411,286.40, 111,326,966.40 and 79,411,286.40

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Solution

The fourth proportional to 79,411,286.40, 111,326,966.40 and 79,411,286.40 is: 111,326,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,411,286.40 : 111,326,966.40 = 79,411,286.40 : x
  2. Step 2: Convert to fraction form
    79,411,286.40/111,326,966.40 = 79,411,286.40/x
  3. Step 3: Cross multiply
    79,411,286.40x = 111,326,966.40 × 79,411,286.40
  4. Step 4: Simplify right side
    79,411,286.40x = 8,840,617,612,833,578
  5. Step 5: Solve for x
    x = 8,840,617,612,833,578/79,411,286.40
  6. Step 6: Final answer
    x = 111,326,966.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.