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Finding the Fourth Proportional to 111,444.48, 153,807.12 and 69,045.84

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Solution

The fourth proportional to 111,444.48, 153,807.12 and 69,045.84 is: 95,291.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,444.48 : 153,807.12 = 69,045.84 : x
  2. Step 2: Convert to fraction form
    111,444.48/153,807.12 = 69,045.84/x
  3. Step 3: Cross multiply
    111,444.48x = 153,807.12 × 69,045.84
  4. Step 4: Simplify right side
    111,444.48x = 10,619,741,798.38
  5. Step 5: Solve for x
    x = 10,619,741,798.38/111,444.48
  6. Step 6: Final answer
    x = 95,291.77

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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.