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Finding the Fourth Proportional to 250,646.48, 375,993.52 and 90,762.80

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Solution

The fourth proportional to 250,646.48, 375,993.52 and 90,762.80 is: 136,152.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,646.48 : 375,993.52 = 90,762.80 : x
  2. Step 2: Convert to fraction form
    250,646.48/375,993.52 = 90,762.80/x
  3. Step 3: Cross multiply
    250,646.48x = 375,993.52 × 90,762.80
  4. Step 4: Simplify right side
    250,646.48x = 34,126,224,657.06
  5. Step 5: Solve for x
    x = 34,126,224,657.06/250,646.48
  6. Step 6: Final answer
    x = 136,152.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.