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Finding the Fourth Proportional to 115,061.66, 172,654.52 and 48,547.88

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Solution

The fourth proportional to 115,061.66, 172,654.52 and 48,547.88 is: 72,847.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,061.66 : 172,654.52 = 48,547.88 : x
  2. Step 2: Convert to fraction form
    115,061.66/172,654.52 = 48,547.88/x
  3. Step 3: Cross multiply
    115,061.66x = 172,654.52 × 48,547.88
  4. Step 4: Simplify right side
    115,061.66x = 8,382,010,918.42
  5. Step 5: Solve for x
    x = 8,382,010,918.42/115,061.66
  6. Step 6: Final answer
    x = 72,847.99

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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.