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Finding the Fourth Proportional to 73,605.40, 101,575.74 and 40,071.40

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Solution

The fourth proportional to 73,605.40, 101,575.74 and 40,071.40 is: 55,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,605.40 : 101,575.74 = 40,071.40 : x
  2. Step 2: Convert to fraction form
    73,605.40/101,575.74 = 40,071.40/x
  3. Step 3: Cross multiply
    73,605.40x = 101,575.74 × 40,071.40
  4. Step 4: Simplify right side
    73,605.40x = 4,070,282,107.84
  5. Step 5: Solve for x
    x = 4,070,282,107.84/73,605.40
  6. Step 6: Final answer
    x = 55,298.69

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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.