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Finding the Fourth Proportional to 191,203.70, 286,805.55 and 102,630.20

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Solution

The fourth proportional to 191,203.70, 286,805.55 and 102,630.20 is: 153,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,203.70 : 286,805.55 = 102,630.20 : x
  2. Step 2: Convert to fraction form
    191,203.70/286,805.55 = 102,630.20/x
  3. Step 3: Cross multiply
    191,203.70x = 286,805.55 × 102,630.20
  4. Step 4: Simplify right side
    191,203.70x = 29,434,910,957.61
  5. Step 5: Solve for x
    x = 29,434,910,957.61/191,203.70
  6. Step 6: Final answer
    x = 153,945.30

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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.