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Finding the Fourth Proportional to 95,394, 143,106.66 and 39,218.88

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Solution

The fourth proportional to 95,394, 143,106.66 and 39,218.88 is: 58,834.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,394 : 143,106.66 = 39,218.88 : x
  2. Step 2: Convert to fraction form
    95,394/143,106.66 = 39,218.88/x
  3. Step 3: Cross multiply
    95,394x = 143,106.66 × 39,218.88
  4. Step 4: Simplify right side
    95,394x = 5,612,482,925.74
  5. Step 5: Solve for x
    x = 5,612,482,925.74/95,394
  6. Step 6: Final answer
    x = 58,834.76

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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.