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Finding the Fourth Proportional to 615,060.12, 922,485.02 and 165,675.89

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Solution

The fourth proportional to 615,060.12, 922,485.02 and 165,675.89 is: 248,485.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,060.12 : 922,485.02 = 165,675.89 : x
  2. Step 2: Convert to fraction form
    615,060.12/922,485.02 = 165,675.89/x
  3. Step 3: Cross multiply
    615,060.12x = 922,485.02 × 165,675.89
  4. Step 4: Simplify right side
    615,060.12x = 152,833,523,610.31
  5. Step 5: Solve for x
    x = 152,833,523,610.31/615,060.12
  6. Step 6: Final answer
    x = 248,485.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.