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Finding the Fourth Proportional to 161,987.59, 242,964.98 and 43,670.89

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Solution

The fourth proportional to 161,987.59, 242,964.98 and 43,670.89 is: 65,501.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,987.59 : 242,964.98 = 43,670.89 : x
  2. Step 2: Convert to fraction form
    161,987.59/242,964.98 = 43,670.89/x
  3. Step 3: Cross multiply
    161,987.59x = 242,964.98 × 43,670.89
  4. Step 4: Simplify right side
    161,987.59x = 10,610,497,686.61
  5. Step 5: Solve for x
    x = 10,610,497,686.61/161,987.59
  6. Step 6: Final answer
    x = 65,501.92

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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.