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Finding the Fourth Proportional to 113,807.62, 170,733.40 and 43,681.47

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Solution

The fourth proportional to 113,807.62, 170,733.40 and 43,681.47 is: 65,530.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,807.62 : 170,733.40 = 43,681.47 : x
  2. Step 2: Convert to fraction form
    113,807.62/170,733.40 = 43,681.47/x
  3. Step 3: Cross multiply
    113,807.62x = 170,733.40 × 43,681.47
  4. Step 4: Simplify right side
    113,807.62x = 7,457,885,890.10
  5. Step 5: Solve for x
    x = 7,457,885,890.10/113,807.62
  6. Step 6: Final answer
    x = 65,530.64

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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.