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Finding the Fourth Proportional to 82,717,426.80, 124,076,140.20 and 82,717,426.80

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Solution

The fourth proportional to 82,717,426.80, 124,076,140.20 and 82,717,426.80 is: 124,076,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,717,426.80 : 124,076,140.20 = 82,717,426.80 : x
  2. Step 2: Convert to fraction form
    82,717,426.80/124,076,140.20 = 82,717,426.80/x
  3. Step 3: Cross multiply
    82,717,426.80x = 124,076,140.20 × 82,717,426.80
  4. Step 4: Simplify right side
    82,717,426.80x = 10,263,259,044,620,038
  5. Step 5: Solve for x
    x = 10,263,259,044,620,038/82,717,426.80
  6. Step 6: Final answer
    x = 124,076,140.20

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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.