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Finding the Fourth Proportional to 185,580.48, 256,101.76 and 100,698.24

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Solution

The fourth proportional to 185,580.48, 256,101.76 and 100,698.24 is: 138,963.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,580.48 : 256,101.76 = 100,698.24 : x
  2. Step 2: Convert to fraction form
    185,580.48/256,101.76 = 100,698.24/x
  3. Step 3: Cross multiply
    185,580.48x = 256,101.76 × 100,698.24
  4. Step 4: Simplify right side
    185,580.48x = 25,788,996,492.90
  5. Step 5: Solve for x
    x = 25,788,996,492.90/185,580.48
  6. Step 6: Final answer
    x = 138,963.95

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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.