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Finding the Fourth Proportional to 92,159,092.80, 138,237,692.40 and 53,272,801.80

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Solution

The fourth proportional to 92,159,092.80, 138,237,692.40 and 53,272,801.80 is: 79,908,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,159,092.80 : 138,237,692.40 = 53,272,801.80 : x
  2. Step 2: Convert to fraction form
    92,159,092.80/138,237,692.40 = 53,272,801.80/x
  3. Step 3: Cross multiply
    92,159,092.80x = 138,237,692.40 × 53,272,801.80
  4. Step 4: Simplify right side
    92,159,092.80x = 7,364,309,188,514,566
  5. Step 5: Solve for x
    x = 7,364,309,188,514,566/92,159,092.80
  6. Step 6: Final answer
    x = 79,908,655.40

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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.