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Finding the Fourth Proportional to 104,986,087.20, 157,479,130.80 and 104,986,087.20

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Solution

The fourth proportional to 104,986,087.20, 157,479,130.80 and 104,986,087.20 is: 157,479,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,986,087.20 : 157,479,130.80 = 104,986,087.20 : x
  2. Step 2: Convert to fraction form
    104,986,087.20/157,479,130.80 = 104,986,087.20/x
  3. Step 3: Cross multiply
    104,986,087.20x = 157,479,130.80 × 104,986,087.20
  4. Step 4: Simplify right side
    104,986,087.20x = 16,533,117,758,349,008
  5. Step 5: Solve for x
    x = 16,533,117,758,349,008/104,986,087.20
  6. Step 6: Final answer
    x = 157,479,130.80

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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.