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Finding the Fourth Proportional to 158,903.94, 219,056.49 and 111,008.64

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Solution

The fourth proportional to 158,903.94, 219,056.49 and 111,008.64 is: 153,030.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,903.94 : 219,056.49 = 111,008.64 : x
  2. Step 2: Convert to fraction form
    158,903.94/219,056.49 = 111,008.64/x
  3. Step 3: Cross multiply
    158,903.94x = 219,056.49 × 111,008.64
  4. Step 4: Simplify right side
    158,903.94x = 24,317,163,038.07
  5. Step 5: Solve for x
    x = 24,317,163,038.07/158,903.94
  6. Step 6: Final answer
    x = 153,030.59

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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.