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Finding the Fourth Proportional to 185,888.78, 256,525.62 and 105,316.13

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Solution

The fourth proportional to 185,888.78, 256,525.62 and 105,316.13 is: 145,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,888.78 : 256,525.62 = 105,316.13 : x
  2. Step 2: Convert to fraction form
    185,888.78/256,525.62 = 105,316.13/x
  3. Step 3: Cross multiply
    185,888.78x = 256,525.62 × 105,316.13
  4. Step 4: Simplify right side
    185,888.78x = 27,016,285,223.59
  5. Step 5: Solve for x
    x = 27,016,285,223.59/185,888.78
  6. Step 6: Final answer
    x = 145,335.75

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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.