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Finding the Fourth Proportional to 250,465.50, 345,643.20 and 135,746.01

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Solution

The fourth proportional to 250,465.50, 345,643.20 and 135,746.01 is: 187,329.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,465.50 : 345,643.20 = 135,746.01 : x
  2. Step 2: Convert to fraction form
    250,465.50/345,643.20 = 135,746.01/x
  3. Step 3: Cross multiply
    250,465.50x = 345,643.20 × 135,746.01
  4. Step 4: Simplify right side
    250,465.50x = 46,919,685,283.63
  5. Step 5: Solve for x
    x = 46,919,685,283.63/250,465.50
  6. Step 6: Final answer
    x = 187,329.93

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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.