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Finding the Fourth Proportional to 98,341,710.80, 147,512,566.20 and 52,992,078.80

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Solution

The fourth proportional to 98,341,710.80, 147,512,566.20 and 52,992,078.80 is: 79,488,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,341,710.80 : 147,512,566.20 = 52,992,078.80 : x
  2. Step 2: Convert to fraction form
    98,341,710.80/147,512,566.20 = 52,992,078.80/x
  3. Step 3: Cross multiply
    98,341,710.80x = 147,512,566.20 × 52,992,078.80
  4. Step 4: Simplify right side
    98,341,710.80x = 7,816,997,532,060,615
  5. Step 5: Solve for x
    x = 7,816,997,532,060,615/98,341,710.80
  6. Step 6: Final answer
    x = 79,488,118.20

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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.