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Finding the Fourth Proportional to 250,036.16, 345,051 and 135,314.82

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Solution

The fourth proportional to 250,036.16, 345,051 and 135,314.82 is: 186,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,036.16 : 345,051 = 135,314.82 : x
  2. Step 2: Convert to fraction form
    250,036.16/345,051 = 135,314.82/x
  3. Step 3: Cross multiply
    250,036.16x = 345,051 × 135,314.82
  4. Step 4: Simplify right side
    250,036.16x = 46,690,513,955.82
  5. Step 5: Solve for x
    x = 46,690,513,955.82/250,036.16
  6. Step 6: Final answer
    x = 186,735.05

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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.