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Finding the Fourth Proportional to 185,889.68, 256,526.87 and 105,317.03

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Solution

The fourth proportional to 185,889.68, 256,526.87 and 105,317.03 is: 145,337.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,889.68 : 256,526.87 = 105,317.03 : x
  2. Step 2: Convert to fraction form
    185,889.68/256,526.87 = 105,317.03/x
  3. Step 3: Cross multiply
    185,889.68x = 256,526.87 × 105,317.03
  4. Step 4: Simplify right side
    185,889.68x = 27,016,648,063.60
  5. Step 5: Solve for x
    x = 27,016,648,063.60/185,889.68
  6. Step 6: Final answer
    x = 145,337.00

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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.