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Finding the Fourth Proportional to 127,956.36, 191,891.73 and 42,547.53

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Solution

The fourth proportional to 127,956.36, 191,891.73 and 42,547.53 is: 63,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,956.36 : 191,891.73 = 42,547.53 : x
  2. Step 2: Convert to fraction form
    127,956.36/191,891.73 = 42,547.53/x
  3. Step 3: Cross multiply
    127,956.36x = 191,891.73 × 42,547.53
  4. Step 4: Simplify right side
    127,956.36x = 8,164,519,138.93
  5. Step 5: Solve for x
    x = 8,164,519,138.93/127,956.36
  6. Step 6: Final answer
    x = 63,807.06

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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.