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Finding the Fourth Proportional to 329,813.16, 455,152.32 and 186,570.60

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Solution

The fourth proportional to 329,813.16, 455,152.32 and 186,570.60 is: 257,473.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,813.16 : 455,152.32 = 186,570.60 : x
  2. Step 2: Convert to fraction form
    329,813.16/455,152.32 = 186,570.60/x
  3. Step 3: Cross multiply
    329,813.16x = 455,152.32 × 186,570.60
  4. Step 4: Simplify right side
    329,813.16x = 84,918,041,433.79
  5. Step 5: Solve for x
    x = 84,918,041,433.79/329,813.16
  6. Step 6: Final answer
    x = 257,473.17

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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.