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Finding the Fourth Proportional to 144,368.70, 216,509.30 and 43,173.46

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Solution

The fourth proportional to 144,368.70, 216,509.30 and 43,173.46 is: 64,747.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,368.70 : 216,509.30 = 43,173.46 : x
  2. Step 2: Convert to fraction form
    144,368.70/216,509.30 = 43,173.46/x
  3. Step 3: Cross multiply
    144,368.70x = 216,509.30 × 43,173.46
  4. Step 4: Simplify right side
    144,368.70x = 9,347,455,603.18
  5. Step 5: Solve for x
    x = 9,347,455,603.18/144,368.70
  6. Step 6: Final answer
    x = 64,747.11

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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.