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Finding the Fourth Proportional to 98,887,340.80, 148,393,996.80 and 57,946,700.80

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Solution

The fourth proportional to 98,887,340.80, 148,393,996.80 and 57,946,700.80 is: 86,956,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,887,340.80 : 148,393,996.80 = 57,946,700.80 : x
  2. Step 2: Convert to fraction form
    98,887,340.80/148,393,996.80 = 57,946,700.80/x
  3. Step 3: Cross multiply
    98,887,340.80x = 148,393,996.80 × 57,946,700.80
  4. Step 4: Simplify right side
    98,887,340.80x = 8,598,942,533,085,758
  5. Step 5: Solve for x
    x = 8,598,942,533,085,758/98,887,340.80
  6. Step 6: Final answer
    x = 86,956,959.95

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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.