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Finding the Fourth Proportional to 70,866.24, 106,312.44 and 29,316.48

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Solution

The fourth proportional to 70,866.24, 106,312.44 and 29,316.48 is: 43,980.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,866.24 : 106,312.44 = 29,316.48 : x
  2. Step 2: Convert to fraction form
    70,866.24/106,312.44 = 29,316.48/x
  3. Step 3: Cross multiply
    70,866.24x = 106,312.44 × 29,316.48
  4. Step 4: Simplify right side
    70,866.24x = 3,116,706,521.01
  5. Step 5: Solve for x
    x = 3,116,706,521.01/70,866.24
  6. Step 6: Final answer
    x = 43,980.13

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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.