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Finding the Fourth Proportional to 199,465.90, 275,364.57 and 154,041.91

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Solution

The fourth proportional to 199,465.90, 275,364.57 and 154,041.91 is: 212,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,465.90 : 275,364.57 = 154,041.91 : x
  2. Step 2: Convert to fraction form
    199,465.90/275,364.57 = 154,041.91/x
  3. Step 3: Cross multiply
    199,465.90x = 275,364.57 × 154,041.91
  4. Step 4: Simplify right side
    199,465.90x = 42,417,684,309.13
  5. Step 5: Solve for x
    x = 42,417,684,309.13/199,465.90
  6. Step 6: Final answer
    x = 212,656.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.