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Finding the Fourth Proportional to 74,526.75, 102,848.54 and 40,992.75

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Solution

The fourth proportional to 74,526.75, 102,848.54 and 40,992.75 is: 56,570.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,526.75 : 102,848.54 = 40,992.75 : x
  2. Step 2: Convert to fraction form
    74,526.75/102,848.54 = 40,992.75/x
  3. Step 3: Cross multiply
    74,526.75x = 102,848.54 × 40,992.75
  4. Step 4: Simplify right side
    74,526.75x = 4,216,044,283.12
  5. Step 5: Solve for x
    x = 4,216,044,283.12/74,526.75
  6. Step 6: Final answer
    x = 56,570.89

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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.