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Finding the Fourth Proportional to 191,369,112.90, 287,053,669.35 and 191,369,112.90

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Solution

The fourth proportional to 191,369,112.90, 287,053,669.35 and 191,369,112.90 is: 287,053,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,369,112.90 : 287,053,669.35 = 191,369,112.90 : x
  2. Step 2: Convert to fraction form
    191,369,112.90/287,053,669.35 = 191,369,112.90/x
  3. Step 3: Cross multiply
    191,369,112.90x = 287,053,669.35 × 191,369,112.90
  4. Step 4: Simplify right side
    191,369,112.90x = 54,933,206,058,199,424
  5. Step 5: Solve for x
    x = 54,933,206,058,199,424/191,369,112.90
  6. Step 6: Final answer
    x = 287,053,669.35

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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.