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Finding the Fourth Proportional to 89,483.64, 123,484.80 and 49,197.48

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Solution

The fourth proportional to 89,483.64, 123,484.80 and 49,197.48 is: 67,891.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,483.64 : 123,484.80 = 49,197.48 : x
  2. Step 2: Convert to fraction form
    89,483.64/123,484.80 = 49,197.48/x
  3. Step 3: Cross multiply
    89,483.64x = 123,484.80 × 49,197.48
  4. Step 4: Simplify right side
    89,483.64x = 6,075,140,978.30
  5. Step 5: Solve for x
    x = 6,075,140,978.30/89,483.64
  6. Step 6: Final answer
    x = 67,891.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.