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Finding the Fourth Proportional to 560,636.81, 840,925.81 and 161,261.90

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Solution

The fourth proportional to 560,636.81, 840,925.81 and 161,261.90 is: 241,884.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,636.81 : 840,925.81 = 161,261.90 : x
  2. Step 2: Convert to fraction form
    560,636.81/840,925.81 = 161,261.90/x
  3. Step 3: Cross multiply
    560,636.81x = 840,925.81 × 161,261.90
  4. Step 4: Simplify right side
    560,636.81x = 135,609,293,030.06
  5. Step 5: Solve for x
    x = 135,609,293,030.06/560,636.81
  6. Step 6: Final answer
    x = 241,884.39

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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.