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Finding the Fourth Proportional to 219,263.72, 328,895.59 and 53,051.72

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Solution

The fourth proportional to 219,263.72, 328,895.59 and 53,051.72 is: 79,577.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,263.72 : 328,895.59 = 53,051.72 : x
  2. Step 2: Convert to fraction form
    219,263.72/328,895.59 = 53,051.72/x
  3. Step 3: Cross multiply
    219,263.72x = 328,895.59 × 53,051.72
  4. Step 4: Simplify right side
    219,263.72x = 17,448,476,405.11
  5. Step 5: Solve for x
    x = 17,448,476,405.11/219,263.72
  6. Step 6: Final answer
    x = 79,577.58

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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.