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Finding the Fourth Proportional to 225,362.13, 310,987.93 and 123,368.06

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Solution

The fourth proportional to 225,362.13, 310,987.93 and 123,368.06 is: 170,241.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,362.13 : 310,987.93 = 123,368.06 : x
  2. Step 2: Convert to fraction form
    225,362.13/310,987.93 = 123,368.06/x
  3. Step 3: Cross multiply
    225,362.13x = 310,987.93 × 123,368.06
  4. Step 4: Simplify right side
    225,362.13x = 38,365,979,310.84
  5. Step 5: Solve for x
    x = 38,365,979,310.84/225,362.13
  6. Step 6: Final answer
    x = 170,241.46

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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.