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Finding the Fourth Proportional to 103,173, 142,304.98 and 94,702

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Solution

The fourth proportional to 103,173, 142,304.98 and 94,702 is: 130,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,173 : 142,304.98 = 94,702 : x
  2. Step 2: Convert to fraction form
    103,173/142,304.98 = 94,702/x
  3. Step 3: Cross multiply
    103,173x = 142,304.98 × 94,702
  4. Step 4: Simplify right side
    103,173x = 13,476,566,215.96
  5. Step 5: Solve for x
    x = 13,476,566,215.96/103,173
  6. Step 6: Final answer
    x = 130,621.06

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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.