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Finding the Fourth Proportional to 191,843.90, 287,765.40 and 51,602.66

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Solution

The fourth proportional to 191,843.90, 287,765.40 and 51,602.66 is: 77,403.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,843.90 : 287,765.40 = 51,602.66 : x
  2. Step 2: Convert to fraction form
    191,843.90/287,765.40 = 51,602.66/x
  3. Step 3: Cross multiply
    191,843.90x = 287,765.40 × 51,602.66
  4. Step 4: Simplify right side
    191,843.90x = 14,849,460,095.96
  5. Step 5: Solve for x
    x = 14,849,460,095.96/191,843.90
  6. Step 6: Final answer
    x = 77,403.87

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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.