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Finding the Fourth Proportional to 79,713,042.40, 119,356,987.20 and 79,713,042.40

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Solution

The fourth proportional to 79,713,042.40, 119,356,987.20 and 79,713,042.40 is: 119,356,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,042.40 : 119,356,987.20 = 79,713,042.40 : x
  2. Step 2: Convert to fraction form
    79,713,042.40/119,356,987.20 = 79,713,042.40/x
  3. Step 3: Cross multiply
    79,713,042.40x = 119,356,987.20 × 79,713,042.40
  4. Step 4: Simplify right side
    79,713,042.40x = 9,514,308,581,409,858
  5. Step 5: Solve for x
    x = 9,514,308,581,409,858/79,713,042.40
  6. Step 6: Final answer
    x = 119,356,987.20

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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.