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Finding the Fourth Proportional to 162,695.31, 243,985.77 and 48,809.16

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Solution

The fourth proportional to 162,695.31, 243,985.77 and 48,809.16 is: 73,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,695.31 : 243,985.77 = 48,809.16 : x
  2. Step 2: Convert to fraction form
    162,695.31/243,985.77 = 48,809.16/x
  3. Step 3: Cross multiply
    162,695.31x = 243,985.77 × 48,809.16
  4. Step 4: Simplify right side
    162,695.31x = 11,908,740,485.65
  5. Step 5: Solve for x
    x = 11,908,740,485.65/162,695.31
  6. Step 6: Final answer
    x = 73,196.58

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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.