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Finding the Fourth Proportional to 185,615.84, 256,148.52 and 100,731.08

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Solution

The fourth proportional to 185,615.84, 256,148.52 and 100,731.08 is: 139,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,615.84 : 256,148.52 = 100,731.08 : x
  2. Step 2: Convert to fraction form
    185,615.84/256,148.52 = 100,731.08/x
  3. Step 3: Cross multiply
    185,615.84x = 256,148.52 × 100,731.08
  4. Step 4: Simplify right side
    185,615.84x = 25,802,117,060.00
  5. Step 5: Solve for x
    x = 25,802,117,060.00/185,615.84
  6. Step 6: Final answer
    x = 139,008.16

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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.