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Finding the Fourth Proportional to 343,569.76, 474,129.13 and 190,617.98

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Solution

The fourth proportional to 343,569.76, 474,129.13 and 190,617.98 is: 263,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,569.76 : 474,129.13 = 190,617.98 : x
  2. Step 2: Convert to fraction form
    343,569.76/474,129.13 = 190,617.98/x
  3. Step 3: Cross multiply
    343,569.76x = 474,129.13 × 190,617.98
  4. Step 4: Simplify right side
    343,569.76x = 90,377,536,066.67
  5. Step 5: Solve for x
    x = 90,377,536,066.67/343,569.76
  6. Step 6: Final answer
    x = 263,054.40

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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.