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Finding the Fourth Proportional to 152,698.60, 210,725.34 and 84,720.04

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Solution

The fourth proportional to 152,698.60, 210,725.34 and 84,720.04 is: 116,914.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,698.60 : 210,725.34 = 84,720.04 : x
  2. Step 2: Convert to fraction form
    152,698.60/210,725.34 = 84,720.04/x
  3. Step 3: Cross multiply
    152,698.60x = 210,725.34 × 84,720.04
  4. Step 4: Simplify right side
    152,698.60x = 17,852,659,233.81
  5. Step 5: Solve for x
    x = 17,852,659,233.81/152,698.60
  6. Step 6: Final answer
    x = 116,914.36

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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.