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Finding the Fourth Proportional to 661,881.30, 992,657.91 and 188,570.76

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Solution

The fourth proportional to 661,881.30, 992,657.91 and 188,570.76 is: 282,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,881.30 : 992,657.91 = 188,570.76 : x
  2. Step 2: Convert to fraction form
    661,881.30/992,657.91 = 188,570.76/x
  3. Step 3: Cross multiply
    661,881.30x = 992,657.91 × 188,570.76
  4. Step 4: Simplify right side
    661,881.30x = 187,186,256,508.71
  5. Step 5: Solve for x
    x = 187,186,256,508.71/661,881.30
  6. Step 6: Final answer
    x = 282,809.40

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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.