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Finding the Fourth Proportional to 185,003.78, 277,335.56 and 66,646.17

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Solution

The fourth proportional to 185,003.78, 277,335.56 and 66,646.17 is: 99,907.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,003.78 : 277,335.56 = 66,646.17 : x
  2. Step 2: Convert to fraction form
    185,003.78/277,335.56 = 66,646.17/x
  3. Step 3: Cross multiply
    185,003.78x = 277,335.56 × 66,646.17
  4. Step 4: Simplify right side
    185,003.78x = 18,483,353,045.42
  5. Step 5: Solve for x
    x = 18,483,353,045.42/185,003.78
  6. Step 6: Final answer
    x = 99,907.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.