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Finding the Fourth Proportional to 185,854.67, 256,482.56 and 100,971.80

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Solution

The fourth proportional to 185,854.67, 256,482.56 and 100,971.80 is: 139,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,854.67 : 256,482.56 = 100,971.80 : x
  2. Step 2: Convert to fraction form
    185,854.67/256,482.56 = 100,971.80/x
  3. Step 3: Cross multiply
    185,854.67x = 256,482.56 × 100,971.80
  4. Step 4: Simplify right side
    185,854.67x = 25,897,505,751.81
  5. Step 5: Solve for x
    x = 25,897,505,751.81/185,854.67
  6. Step 6: Final answer
    x = 139,342.78

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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.