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Finding the Fourth Proportional to 71,093.10, 98,114.28 and 40,888.20

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Solution

The fourth proportional to 71,093.10, 98,114.28 and 40,888.20 is: 56,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,093.10 : 98,114.28 = 40,888.20 : x
  2. Step 2: Convert to fraction form
    71,093.10/98,114.28 = 40,888.20/x
  3. Step 3: Cross multiply
    71,093.10x = 98,114.28 × 40,888.20
  4. Step 4: Simplify right side
    71,093.10x = 4,011,716,303.50
  5. Step 5: Solve for x
    x = 4,011,716,303.50/71,093.10
  6. Step 6: Final answer
    x = 56,429.05

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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.