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Finding the Fourth Proportional to 73,438.82, 101,346.18 and 39,904.82

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Solution

The fourth proportional to 73,438.82, 101,346.18 and 39,904.82 is: 55,068.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,438.82 : 101,346.18 = 39,904.82 : x
  2. Step 2: Convert to fraction form
    73,438.82/101,346.18 = 39,904.82/x
  3. Step 3: Cross multiply
    73,438.82x = 101,346.18 × 39,904.82
  4. Step 4: Simplify right side
    73,438.82x = 4,044,201,070.59
  5. Step 5: Solve for x
    x = 4,044,201,070.59/73,438.82
  6. Step 6: Final answer
    x = 55,068.98

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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.