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Finding the Fourth Proportional to 79,784,421.60, 119,676,632.40 and 79,784,421.60

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Solution

The fourth proportional to 79,784,421.60, 119,676,632.40 and 79,784,421.60 is: 119,676,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,784,421.60 : 119,676,632.40 = 79,784,421.60 : x
  2. Step 2: Convert to fraction form
    79,784,421.60/119,676,632.40 = 79,784,421.60/x
  3. Step 3: Cross multiply
    79,784,421.60x = 119,676,632.40 × 79,784,421.60
  4. Step 4: Simplify right side
    79,784,421.60x = 9,548,330,895,069,820
  5. Step 5: Solve for x
    x = 9,548,330,895,069,820/79,784,421.60
  6. Step 6: Final answer
    x = 119,676,632.40

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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.