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Finding the Fourth Proportional to 98,887,358.80, 148,394,023.80 and 57,946,718.80

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Solution

The fourth proportional to 98,887,358.80, 148,394,023.80 and 57,946,718.80 is: 86,956,986.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,887,358.80 : 148,394,023.80 = 57,946,718.80 : x
  2. Step 2: Convert to fraction form
    98,887,358.80/148,394,023.80 = 57,946,718.80/x
  3. Step 3: Cross multiply
    98,887,358.80x = 148,394,023.80 × 57,946,718.80
  4. Step 4: Simplify right side
    98,887,358.80x = 8,598,946,768,739,108
  5. Step 5: Solve for x
    x = 8,598,946,768,739,108/98,887,358.80
  6. Step 6: Final answer
    x = 86,956,986.95

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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.