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Finding the Fourth Proportional to 92,075.95, 138,119.77 and 28,898.57

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Solution

The fourth proportional to 92,075.95, 138,119.77 and 28,898.57 is: 43,349.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,075.95 : 138,119.77 = 28,898.57 : x
  2. Step 2: Convert to fraction form
    92,075.95/138,119.77 = 28,898.57/x
  3. Step 3: Cross multiply
    92,075.95x = 138,119.77 × 28,898.57
  4. Step 4: Simplify right side
    92,075.95x = 3,991,463,841.73
  5. Step 5: Solve for x
    x = 3,991,463,841.73/92,075.95
  6. Step 6: Final answer
    x = 43,349.69

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1.5x scale

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.