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Finding the Fourth Proportional to 181,886.31, 250,996.52 and 101,312.17

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Solution

The fourth proportional to 181,886.31, 250,996.52 and 101,312.17 is: 139,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,886.31 : 250,996.52 = 101,312.17 : x
  2. Step 2: Convert to fraction form
    181,886.31/250,996.52 = 101,312.17/x
  3. Step 3: Cross multiply
    181,886.31x = 250,996.52 × 101,312.17
  4. Step 4: Simplify right side
    181,886.31x = 25,429,001,729.44
  5. Step 5: Solve for x
    x = 25,429,001,729.44/181,886.31
  6. Step 6: Final answer
    x = 139,807.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.