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Finding the Fourth Proportional to 357,117.39, 492,828.06 and 195,987.45

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Solution

The fourth proportional to 357,117.39, 492,828.06 and 195,987.45 is: 270,466.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,117.39 : 492,828.06 = 195,987.45 : x
  2. Step 2: Convert to fraction form
    357,117.39/492,828.06 = 195,987.45/x
  3. Step 3: Cross multiply
    357,117.39x = 492,828.06 × 195,987.45
  4. Step 4: Simplify right side
    357,117.39x = 96,588,114,767.85
  5. Step 5: Solve for x
    x = 96,588,114,767.85/357,117.39
  6. Step 6: Final answer
    x = 270,466.01

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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.