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Finding the Fourth Proportional to 368,064.70, 552,097.11 and 115,345.10

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Solution

The fourth proportional to 368,064.70, 552,097.11 and 115,345.10 is: 173,017.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,064.70 : 552,097.11 = 115,345.10 : x
  2. Step 2: Convert to fraction form
    368,064.70/552,097.11 = 115,345.10/x
  3. Step 3: Cross multiply
    368,064.70x = 552,097.11 × 115,345.10
  4. Step 4: Simplify right side
    368,064.70x = 63,681,696,362.66
  5. Step 5: Solve for x
    x = 63,681,696,362.66/368,064.70
  6. Step 6: Final answer
    x = 173,017.67

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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.