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Finding the Fourth Proportional to 153,905.90, 230,858.85 and 94,856.90

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Solution

The fourth proportional to 153,905.90, 230,858.85 and 94,856.90 is: 142,285.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,905.90 : 230,858.85 = 94,856.90 : x
  2. Step 2: Convert to fraction form
    153,905.90/230,858.85 = 94,856.90/x
  3. Step 3: Cross multiply
    153,905.90x = 230,858.85 × 94,856.90
  4. Step 4: Simplify right side
    153,905.90x = 21,898,554,848.57
  5. Step 5: Solve for x
    x = 21,898,554,848.57/153,905.90
  6. Step 6: Final answer
    x = 142,285.35

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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.