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Finding the Fourth Proportional to 114,765.65, 158,350.65 and 69,442.51

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Solution

The fourth proportional to 114,765.65, 158,350.65 and 69,442.51 is: 95,814.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,765.65 : 158,350.65 = 69,442.51 : x
  2. Step 2: Convert to fraction form
    114,765.65/158,350.65 = 69,442.51/x
  3. Step 3: Cross multiply
    114,765.65x = 158,350.65 × 69,442.51
  4. Step 4: Simplify right side
    114,765.65x = 10,996,265,804.38
  5. Step 5: Solve for x
    x = 10,996,265,804.38/114,765.65
  6. Step 6: Final answer
    x = 95,814.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.