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Finding the Fourth Proportional to 608,076, 912,261.63 and 187,351.86

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Solution

The fourth proportional to 608,076, 912,261.63 and 187,351.86 is: 281,073.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,076 : 912,261.63 = 187,351.86 : x
  2. Step 2: Convert to fraction form
    608,076/912,261.63 = 187,351.86/x
  3. Step 3: Cross multiply
    608,076x = 912,261.63 × 187,351.86
  4. Step 4: Simplify right side
    608,076x = 170,913,913,187.13
  5. Step 5: Solve for x
    x = 170,913,913,187.13/608,076
  6. Step 6: Final answer
    x = 281,073.28

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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.