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Finding the Fourth Proportional to 517,070.32, 775,605.71 and 162,112.02

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Solution

The fourth proportional to 517,070.32, 775,605.71 and 162,112.02 is: 243,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,070.32 : 775,605.71 = 162,112.02 : x
  2. Step 2: Convert to fraction form
    517,070.32/775,605.71 = 162,112.02/x
  3. Step 3: Cross multiply
    517,070.32x = 775,605.71 × 162,112.02
  4. Step 4: Simplify right side
    517,070.32x = 125,735,007,561.07
  5. Step 5: Solve for x
    x = 125,735,007,561.07/517,070.32
  6. Step 6: Final answer
    x = 243,168.10

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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.