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Finding the Fourth Proportional to 124,393.34, 186,456.96 and 70,970.19

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Solution

The fourth proportional to 124,393.34, 186,456.96 and 70,970.19 is: 106,379.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,393.34 : 186,456.96 = 70,970.19 : x
  2. Step 2: Convert to fraction form
    124,393.34/186,456.96 = 70,970.19/x
  3. Step 3: Cross multiply
    124,393.34x = 186,456.96 × 70,970.19
  4. Step 4: Simplify right side
    124,393.34x = 13,232,885,878.02
  5. Step 5: Solve for x
    x = 13,232,885,878.02/124,393.34
  6. Step 6: Final answer
    x = 106,379.38

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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.