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Finding the Fourth Proportional to 70,368.87, 97,115.97 and 40,158.73

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Solution

The fourth proportional to 70,368.87, 97,115.97 and 40,158.73 is: 55,423.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,368.87 : 97,115.97 = 40,158.73 : x
  2. Step 2: Convert to fraction form
    70,368.87/97,115.97 = 40,158.73/x
  3. Step 3: Cross multiply
    70,368.87x = 97,115.97 × 40,158.73
  4. Step 4: Simplify right side
    70,368.87x = 3,900,054,290.24
  5. Step 5: Solve for x
    x = 3,900,054,290.24/70,368.87
  6. Step 6: Final answer
    x = 55,423.00

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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.